Question

mim ajudem por favor

Answer 1

a) x-17 = -9
x = -9+17
x = -8

b) 3(x+2) +5 = x+12
3x+6+5 = x+12
3x+11 = x+12
3x-x = 12-11
2x= 1
x = 1/2

c) 2x= -7
x = -7/2

d) 3x+2 = 2x-11
3x-2x = -11-2
x = -13