Answer:
7.)B. 25
8.) D. Substraction
9.)A.
10.) C.
Simplifying
x + 20 = 35
Reorder the terms:
20 + x = 35
Solving
20 + x = 35
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-20' to each side of the equation.
20 + -20 + x = 35 + -20
Combine like terms: 20 + -20 = 0
0 + x = 35 + -20
x = 35 + -20
Combine like terms: 35 + -20 = 15
x = 15
Simplifying
x = 15
11.)A.
We move all terms containing x to the left, all other terms to the right
6x=-36
x=-36/6
x=-6
12.)D.
13.)C.
14.)D.
15.)C
Step-by-step explanation:
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