Question

Can someone please help just for a sec and help me with these questions. -7x = -91 and

0.5x + 1.75 = 10 and last one is
0.75h + 3 = 12

Answer 1

13, 16.5, 12

Explanation:

-7x= -91 divide both sides by -7 to isolate x

`(-7)/(-7) x=(-91)/(-7)` any number divided by itself like in -7/-7 =1

x=13

0.5x + 1.75 = 10 subtract 1.75 from both sides

0.5x +1.75-1.75 =10 -1.75

0.5x = 8.25 divide by 0.5 both sides

`(0.5)/(0.5) x=(8.25)/(0.5)`

x=16.5

0.75h +3=12 subtract 3 from both sides

0.75h = 12-3 divide both sides by 0.75

`h= (9)/(0.75)` = 12