Question

A)2 · (x - 3) - 3 · (4x - 5) = 17 - 8x

B) 4X - 3 · (1 - 3x) = - 3

C) 4 · (2x) - 3 · (3x - 5) = 12x - 180

D) 6 - x = 4 ( x - 3) - 7 · (x - 4)
AYUDA PORFA

Answer 1

Explicación paso a paso:

$a) \\ 2(x - 3) - 3(4x - 5) = 17 - 8x \\ 2x - 6 - 12x + 15 = 17 - 8x \\ - 10x + 9= 17 - 8x \\ - 10x + 8x = 17 - 9\\ - 2x = 8\\ x = 8 \div ( - 2) \\ x = - 4$

$b) \\ 4x - 3(1 - 3x) = - 3 \\ 4x - 3 + 3x = - 3 \\ 7x = - 3 + 3 \\ 7x = 0 \\ x = 0 \div 7 \\ x = 0$

$c) \\ 4(2x) - 3(3x - 5) = 12x - 180 \\ 8x - 9x + 15 = 12x - 180 \\ - 1x + 15 = 12x - 180 \\ - 1x - 12x = - 180 - 15 \\ - 13x = - 195 \\ x = - 195 \div ( - 13) \\ x = 15$

$d) \\ 6 - x =4 (x - 3) - 7(x - 4) \\ 6 - x = 4x - 12 - 7x + 28 \\ 6 - x = - 3x + 16 \\ - x + 3x = 16 - 6 \\ 2x = 10 \\ x = 10 \div 2 \\ x = 5$