Question

1) 5X = 8X - 15

2) 8X – 4 + 3X = 7X + X + 14

3) 21 - 6X = 27 - 8X

4) 5Y + 6Y – 81 = 7Y + 102 + 65Y

5) 8X-15X-30X-51X=53X+31X-172

Answer 1

Respuesta:

1.) 5x=8x-15 1 5x - 8x = - 15 - - 3x = - 15; x = - 15/- 3 * x; x = 15/3; x = 5; 2.)4x+1=2; 4x = 2 - 1; 4x = 1; x = 1/4; 3.)y-5=3y-25; y - 3y = - 25 + 5 - 2y = - 20; y = - 20/- 2; y = 20/2; y = 10; 4.) 5x+6=10x+5; 5x - 10x = 5 - 6 - 5x = - 1 x x = - 1/- 5; x = 1/5; 5.) 9y-11=-10+12y; 9y - 12y = - 10 + 11 - 3y = 1 y = - 1/3; 6.) 21-6x=27-8x - 6x + 8x = 27 * 21; 2x = 6; x = 6/2; x = 3; 7.)11x+5x-1=65x-36; 11x + 5x - 65x = - 36 + 1 - 49x = - 35; x = - 35/- 49; x = 35/49; x = 5/7; 3.) 8x-4+3x=7x+x+14; 8x + 3x - 7x - x = 14 + 4; 3x = 18; x = 18/3; x = 6 .) 18x + 9 - 12x = 4x - 13 - 5x; 8x - 12x - 4x + 5x = - 13 - 9; - 3x = - 22; x = - 221 - 3; x = 22/3 10.) 5y + 6y - 81 = 7y + 102 + 65y; 5y + 6y - 7y - 65y = 102 + 81; - 61y = 183; y = - 183/61; y = - 3 83% 9 11.) 16+7x-5+x=11x-3* x; 7x + x - 11x + x = - 3 - 16 + 5 - 2x = - 14 x x = - 141 - 2; x = 14/2; x = 7 12.) 3x+101-4x-33=108-16x-10(; 3x - 4x + 16x = 108 - 100 - 101 + 33; 15x = - 60 x x = - 60/15; x = - 4; 13.) 14-12x+39x-18x=256-60x 657x 12x + 39x - 18x + 60x + 657x = 256 - 14; 726x = 242; x = 242/726; x = 1/3 14.) 8x-15x-30x-51x=53x+31x. 172xd

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