Question

$-frac{5}{6}$ = 30
7x+43.4=0
3(0.8x+1.7)-3.1=2.6

Answer 1

-5x=180
x=36
7x=-43.4
x=-6.2
2.4x+5.1-3.1=2.6
2.4x=-1.2
x=-0.5