Question

a) x + y -7= 12 b) 5y -155 - 6 + x c) - 3y = x + 4y d) - y + x = - 5y-1​

Answer 1

Resposta:

A) x+y-7=19

x+y=12+7

x+y=19

b) 5y-155-6+x

5y-161+x

c)-3y=x+4y

-7y+x=0

7y+x=0

x+7y=0

d)y+x=-5y-1

y+x+5y=-1

6y+x=-1

x+6y=-1

Explicação passo-a-passo:

confia