Question

What does x= in each of the questions

Answer 1

`(1)/(5) x`+7=2, x=-25

`(m)/(7) -7=3`, m= 105

`(3)/(5) x+7=-20, x= -45`

`-(2)/(7) t+5=17, t=-42`

4.9x+4.2=9.1, x=1

Explanation for last two:

`-(2)/(7)t+5=17`

Step 1: Subtract 5 from both sides.

`(-2)/(7) t+5-5=17-5`

`(-2)/(7) t=12`

Step 2: Multiply both sides by 7/(-2).

`((7)/(-2) )*( (-2)/(7)t )= ((7)/(-2) )*(12)`

t=−42

4.9x+4.2=9.1

Step 1: Subtract 4.2 from both sides.

4.9x+4.2−4.2=9.1−4.2

4.9x=4.9

Step 2: Divide both sides by 4.9.

`(4.9x)/(4.9) (4.9)/(4.9)`

x=1

Answer 2

x+35/5=2

x+35=10

x=-25