Question

10×+40=7 por favo me ajuda

Answer 1

$10x+40=7 \\ \\ 10x=-40+7 \\ \\ 10x=-33 \\ \\ x= -\frac{33}{10} \\ \\ x=-3,3$

Answer 2

10x + 40 = 7
10x = 7 - 40
10x = -33
x = -33/10