Question

Resolva
a) 3×-3=8-×
B)3×+3=12 (2-×)
c) 2×-2.(10-2×)=4
D) 3×+5=10 (×-3)

Answer 1

a) 3x-3=8-x

3x+x=8+3

4x=11

x=11/4

x=2,75

b)3x+3=12 (2-x)

3x+x= 12 + 2-3

4x=11/4

x=2,75

c) 2x-2. (10-2x)=4

2x-2x=4+2-10

-1x=-4 .(-1)

x=4

d) 3x+5=10 ( x-3)

3x-x=10-3-5

2x=2

x=2/2

x=1

Espero ter ajudado❤