Question

resolva as equações no U=Z
a) 3 × - 8 = × + 4

b) 3 (y-1) -4 (y-2) =6

c) 2a/5 - 1/4 =A -10​

Answer 1

Resposta:

a) 3x-8=x+4

3x-x=4+8

2x=12

x=6

b) 3(y-1)-4(y-2)=6

3y-3-4y+8=6

-y=6-5

y= -1