Question

a) 5x+9=48-8x ??

b) 4x40-2x+10=0??

C) 7x+7-2x+10=x-5 ??

d) 3 (5-x) -3 (1-2x)=42 ??

e) 2(3-x) =3 (x-4)+15??

Answer 1

a)5x+8x=-9+48
12x=39
X=39÷12 Em forma de fração

b) 4x-2x=-40-10
2x=-50
X=-50÷4
X=-12, 5

c) 7x-2x-x=-7-10-5
4x=-22
X=-22÷4
X=-5,5

d) 15-3x-3+6x=
6x-3x=15+3
3x=18
X=18÷3
X=6

e) 6-2x=3x-12+15
-2x-3x=-6-12+15
X=-3