Question

Qual a solução de x.4+5=12-x

Answer 1

x.4+5=12-x

4x+5=12-x

4x+x=12-5

5x=7

x=7/5

x=1/4

Answer 2

x*4+5=12-x
4x + 5 = 12 - x
4x + x = 12 -5
5x= 7
x = 7/5
x = 1,4