Question

The sum of the measures of three

angles is 90°
The measure of angle M is 2x
The measure of angle N is 3x + 8
• The measure of angle Q is 7x - 2
What is the value of x?
A. 7 B. 8
C. 9
D. 6

Answer 1

A

Explanation:

Equation

2x + 3x + 8 + 7x - 2 = 90

Solution

Combine like terms on the left

12x + 6 = 90 Subtract 6 on both sides

12x = 90 - 6

12x = 84 Divide by 12

x = 84/12

x = 7