Question

X+2= 7c) 7x -4x+ 80= -7​

Answer 1

Resposta:

x=7-2

x=5

c) 7x-4x+80=-7

3x=-7-80

3x=87

x=87/3

x=29

Answer 2

x + 2= 7

x= 7 - 2

x= 5

_________________

7x - 4x + 80= - 7

7x - 4x= - 7 - 80

3x= - 87

x= - 87/3

x= - 29