Question

resolver a equaçào em R 4(x+4)=x+7

Answer 1

4 (x+4) = x + 7
4x + 16 = x + 7
4x - x = 7 - 16
4x - x = 9
x = 9
3

x = 3

Answer 2

4(x+4)=x+7
4x+16=x+7
4x-x=7-16
3x=9
x=9/3
x=3
S={3}