Question

tividade 3
1. Resolva as equações:
a) 3x - (x - 8) = – 10
b) 7-4-x + 3) = 2x​

Answer 1

A) 3x -x + 8 = -10
2x = -10 -8
X = -18/2
X= -9

B) Seria 7-4-x+3 = 2x?
3-x+3= 2x
3+3= 2x +x
3x= 6
X=6/3 = 2