A. if two angles are complementary angles, then the sum of the measures of two angles is 90°.
Answer:
Step-by-step explanation:
The product of seven and a number squared.
Remember BIDMAS or however you learned it and that indices would be calculated before being multiplied by the term in front
Step-by-step explanation:
1.

2.

First equation: Your equation is given.
Second equation: Distribute by multiplying every number in the parentheses by the number outside it.
3rd equation: Combine like terms by adding 4x to both sides.
4th equation: Combine like terms by subtracting 14 from both sides.
5th equation: Divide both sides by -2, the coefficient of x.