Question

6×=18

3×+5=26

6×+1=31

6×+1+×+4=40

9×-1+2×+9=102

14×+10=206

7×=-21

16×=128

9×+×+2×+3=63

14×+8+2×-10=214


ayuda


ayúdeme es para hoy ​

Answer 1

$3x = 18 \\ x = \frac{18}{3} \\ x = 6 \\ comprobacion = \\ 3x = 18 \\ 3(6) = 18 \\ 18 = 18$

$3x + 5 = 26 \\ 3x = 26 - 5 \\ 3x = 21 \\ x = \frac{21}{3} \\ x = 7 \\ comprobacion = \\ 3x + 5 = 26 \\ 3(7) + 5 = 26 \\ 21 + 5 = 21 \\ 26 = 26$

$6x + 1 = 31 \\ 6x = 31 - 1 \\ 6x = 30 \\ x = \frac{30}{6} \\ x = 5 \\ comprobacion = \\ 6x + 1 = 31 \\ 6(5) + 1 = 31 \\ 30 + 1 = 31 \\ 31 = 31$

$6x + 1 + x + 4 = 40 \\ 7x + 5 = 40 \\ 7x = 40 - 5 \\ 7x = 35 \\ x = \frac{35}{7} \\ x = 5 \\ comprobacion = \\ 6x + 1 + x + 4 = 40 \\ 6(5) + 1 + (5) + 4 = 40 \\ 30 + 5 + 5 = 40 \\ 30 + 10 = 40 \\ 40 = 40$

$9x - 1 + 2x + 9 = 102 \\ 11x + 8 = 102 \\ 11x = 102 - 8 \\ 11x = 94 \\ x = \frac{94}{11} \\ comprobacion = \\ 9x - 1 + 2x + 9 = 102 \\ 9( \frac{94}{11}) + 1 + 2( \frac{94}{11} ) + 9 = 102 \\ \frac{846}{11} - \frac{11}{11} + \frac{188}{11} + \frac{99}{11} = 102 \\ \frac{835}{11} + \frac{287}{11} = 102 \\ \frac{1144}{11} = 102 \\ 102 = 102$

$14x + 10 = 206 \\ 14x = 206 - 10 \\ 14x = 196 \\ x = \frac{196}{14} \\ x = 14 \\ comprobacion = \\ 14x + 10 = 206 \\ 14(14) + 10 = 206 \\ 196 + 10 = 206 \\ 206 = 206$

$7x = - 21 \\ x = \frac{ - 21}{7} \\ x = - 3 \\ comprobacion = \\ 7x = - 21 \\ 7( - 3) = - 21 \\ - 21 = - 21$

$16x = 128 \\ x = \frac{128}{16} \\ x = 8 \\ comprobacion = \\ 16x = 128 \\ 16(8) = 128 \\ 128 = 128$

$9x + x + 2x + 3 = 63 \\ 12x + 3 = 63 \\ 12x = 63 - 3 \\ 12x = 60 \\ x = \frac{60}{12} \\ x = 5 \\ comprobacion = \\ 9x + x + 2x + 3 = 63 \\ 9(5) + (5) + 2(5) + 3 = 63 \\ 45 + 5 + 10 + 3 = 63 \\ 50 + 13 = 63 \\ 63 = 63$

$14x + 8 + 2x - 10 = 214 \\ 16x - 2 = 214 \\ 16x = 214 + 2 \\ 16x = 216 \\ x = \frac{216}{16} \\ x = 13.5 \\ comprobacion = \\ 14x + 8 + 2x - 10 = 214 \\ 14(13.5) + 8 + 2(13.5) - 10 = 214 \\ 189 + 8 + 27 - 10 = 214 \\ 224 - 10 = 214 \\ 214 = 214$

$saludossssssss$