Question

6.3 = 0.7x (I point)

08
018
07
09
5. 2.2 =z÷ 57 (1 point)
062.7
0125.4
059.2
054.8

Answer 1

1) 9

2) 125.4

Hope this helps :)

Explanation and Check part below.

Explanation:

1. Isolate variable by dividing by 0.7 on both sides of equation.

6.3 = 0.7x

---- ------ <------ fraction bar, divide

0.7 0.7

9 = x ---> x = 9

2. Isolate variable by dividing by multiplying by 57 on both sides of equation.

2.2 = z ÷ 57

× 57 × 57

125.4 = z ----> z = 125.4

Check:

Substitute the variables with the solutions.

1) 6.3 = 0.7(9)

6.3 = 6.3 ✓

2) 2.2 = 125.4 ÷ 57

2.2 = 2.2 ✓