Question

A) 3 (×-4)+1=2×-12
B) 2 ( x-2) + 3 = 5 ( x + 1 )

Answer 1

a) 3x-12+1= -24
3x-11= -24
3x= -24+11
3x= -13
x= -13/3

b) 2x-4+3=5x+5
2x-1=5x+5
2x-5x=5+1
-3x=6/3
x= -2
Bons Estudos!

Answer 2

A) 3 (x - 4) + 1 = 2x - 12
3x - 12 + 1 = 2x - 12
3x - 2x -12 + 12 + 1 = 0
x + 1 = 0
x = -1
B) 2 (x - 2) + 3 = 5 (x + 1)
2x - 4 + 3 = 5x + 5
2x - 1 = 5x + 5
2x - 5x -1 - 5 = 0
-3x - 6 = 0 *(-1)
3x + 6 = 0
x = -6/3
x = -2