Question

Write an Equation and solve for x.

Answer 1

x=17

Explanation:

(3x+1)+(4+2x)=90

3x+1+4+2x=90

5x+5=90

5x + 5 - 5 = 90 - 5

5x = 85

5x/5 = 85/5

x = 17

Answer 2

x = 17

Explanation:

The angles 3x + 1 and 4 + 2x MUST total 90 degrees:

5x + 5 = 90 degrees

or: 5x = 85 degrees

therefore: x = 17