abran la foto que se ve mejor ,y ayudenme porfa
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![a)7x + 5 - 4 = 2x - 6 + 2 \\ 7x - 2x = - 6 + 2 - 5 + 4 \\ 5x = - 5 \\ x = \frac{ - 5}{5} \\ x = - 1 a)7x + 5 - 4 = 2x - 6 + 2 \\ 7x - 2x = - 6 + 2 - 5 + 4 \\ 5x = - 5 \\ x = \frac{ - 5}{5} \\ x = - 1](https://tex.z-dn.net/?f=a%297x+%2B+5+-+4+%3D+2x+-+6+%2B+2+%5C%5C+7x+-+2x+%3D++-+6+%2B+2+-+5+%2B+4+%5C%5C+5x+%3D++-+5+%5C%5C+x+%3D+++%5Cfrac%7B+-+5%7D%7B5%7D++%5C%5C+x+%3D++-+1)
Comprobación
![7( - 1) + 5 - 4 = 2( - 1) - 6 + 2 \\ - 7 + 5 - 4 = - 2 - 6 + 2 \\ - 11 + 5 = - 8 + 2 \\ - 6 = - 6 7( - 1) + 5 - 4 = 2( - 1) - 6 + 2 \\ - 7 + 5 - 4 = - 2 - 6 + 2 \\ - 11 + 5 = - 8 + 2 \\ - 6 = - 6](https://tex.z-dn.net/?f=7%28+-+1%29+%2B+5+-+4+%3D+2%28+-+1%29+-+6+%2B+2+%5C%5C++-+7+%2B+5+-+4+%3D++-+2+-+6+%2B+2+%5C%5C+++-+11+%2B+5+%3D++-+8+%2B+2+%5C%5C++-+6+%3D++-+6)
![b)2x + 9 + 8 = 15 - x - 4 \\ 2x + x = 15 - 4 - 9 - 8 \\ 3x = 15 - 21 \\ 3x = - 6 \\ x = \frac{ - 6}{3} = - 2 b)2x + 9 + 8 = 15 - x - 4 \\ 2x + x = 15 - 4 - 9 - 8 \\ 3x = 15 - 21 \\ 3x = - 6 \\ x = \frac{ - 6}{3} = - 2](https://tex.z-dn.net/?f=b%292x+%2B+9+%2B+8+%3D+15+-+x+-+4+%5C%5C+2x+%2B+x+%3D+15+-+4+-+9+-+8+%5C%5C+3x+%3D+15+-+21+%5C%5C+3x+%3D++-+6+%5C%5C+x+%3D++%5Cfrac%7B+-+6%7D%7B3%7D+++%3D++-+2)
Comprobación:
![2( - 2) + 9 + 8 = 15 - ( - 2) - 4 \\ - 4 + 9 + 8 = 15 + 2 - 4 \\ - 4 + 17 = 17 - 4 \\ 13 = 13 2( - 2) + 9 + 8 = 15 - ( - 2) - 4 \\ - 4 + 9 + 8 = 15 + 2 - 4 \\ - 4 + 17 = 17 - 4 \\ 13 = 13](https://tex.z-dn.net/?f=2%28+-+2%29+%2B+9+%2B+8+%3D+15+-+%28+-+2%29+-+4+%5C%5C++-+4+%2B+9+%2B+8+%3D+15+%2B+2+-+4+%5C%5C++-+4+%2B+17+%3D+17+-+4+%5C%5C+13+%3D+13)
![c)8x + 10 - 2 = 3x + 13 + 5 \\ 8x - 3x = 13 + 5 - 10 + 2 \\ 5x = 20 - 10 \\ 5x = 10 \\ x = \frac{10}{5} = 2 c)8x + 10 - 2 = 3x + 13 + 5 \\ 8x - 3x = 13 + 5 - 10 + 2 \\ 5x = 20 - 10 \\ 5x = 10 \\ x = \frac{10}{5} = 2](https://tex.z-dn.net/?f=c%298x+%2B+10+-+2+%3D+3x+%2B+13+%2B+5+%5C%5C+8x+-+3x+%3D+13+%2B+5+-+10+%2B+2+%5C%5C+5x+%3D+20+-+10+%5C%5C+5x+%3D+10+%5C%5C+x+%3D++%5Cfrac%7B10%7D%7B5%7D++%3D+2)
Comprobación:
![8(2) + 10 - 2 = 3(2) + 13 + 5 \\ 16 + 10 - 2 = 6 + 13 + 5 \\ 26 - 2 = 24 \\ 24 = 24 8(2) + 10 - 2 = 3(2) + 13 + 5 \\ 16 + 10 - 2 = 6 + 13 + 5 \\ 26 - 2 = 24 \\ 24 = 24](https://tex.z-dn.net/?f=8%282%29+%2B+10+-+2+%3D+3%282%29+%2B+13+%2B+5+%5C%5C+16+%2B+10+-+2+%3D+6+%2B+13+%2B+5+%5C%5C+26+-+2+%3D+24+%5C%5C+24+%3D+24)
![d)3x - 1 + 4 = 8x + 1 \\ 3x - 8x = 1 + 1 - 4 \\ - 5x = 2 - 4 \\ - 5x = 2 \\ x = \frac{2}{ - 5} = 0.4 d)3x - 1 + 4 = 8x + 1 \\ 3x - 8x = 1 + 1 - 4 \\ - 5x = 2 - 4 \\ - 5x = 2 \\ x = \frac{2}{ - 5} = 0.4](https://tex.z-dn.net/?f=d%293x+-+1+%2B+4+%3D+8x+%2B+1+%5C%5C+3x+-+8x+%3D+1+%2B+1+-+4+%5C%5C++-+5x+%3D+2+-+4+%5C%5C++-+5x+%3D+2+%5C%5C+x+%3D++%5Cfrac%7B2%7D%7B+-+5%7D++%3D+0.4)
Comprobación:
![3(0.4) - 1 + 4 = 8(0.4) + 1 \\ 1.2 - 1 + 4 = 3.2 + 1 \\ .2 + 4 = 4.2 \\ 4.2 = 4.2 3(0.4) - 1 + 4 = 8(0.4) + 1 \\ 1.2 - 1 + 4 = 3.2 + 1 \\ .2 + 4 = 4.2 \\ 4.2 = 4.2](https://tex.z-dn.net/?f=3%280.4%29+-+1+%2B+4+%3D+8%280.4%29+%2B+1+%5C%5C+1.2+-+1+%2B+4+%3D+3.2+%2B+1+%5C%5C+.2+%2B+4+%3D+4.2+%5C%5C+4.2+%3D+4.2)
Espero haberte ayudado
SALUDOS!!!!!!!!!!!!!! ;) ✌✌
Comprobación
Comprobación:
Comprobación:
Comprobación:
Espero haberte ayudado
SALUDOS!!!!!!!!!!!!!! ;) ✌✌
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