Question

EQUAÇÕES, SOCORRO!

4x+5= -3x-8

-12x-7= 2x+5

2x -7= -23

Answer 1

4x + 5 = -3x - 8
4x + 3x = - 8 - 5
7x = -13
x = -13/7

-12x - 7 = 2x + 5
-7 - 5 = 2x + 12x
14x = -12
x = -12/14 (Simplifica por 2)
x = -6/7

2x - 7 = -23
2x = -23 +7
2x = -16
x = -16/2
x = -8

Answer 2

$4x+5= -3x-8 \\\\\\ 4x+3x=-8-5\to \\\\ 7x=-13\to\\\\ x= \frac{-13}{7}$





$-12x-7= 2x+5\\\\\\ -12x-2x=5+7\to \\\\ -14x=12\to \\\\x= \frac{12}{-14} \to \\\\ x=- \frac{6}{7}$





$2x -7= -23\\\\\\ 2x=-23+7\to \\\\ 2x=-16\to \\\\ x= \frac{-16}{2} \to\\\\ x=-8$