Answer:
The statement is true. Supplementary angles have measures that add up to 180°. Each right angle has a measure of 90°. 90°+ 90° = 180°.
Step-by-step explanation:
1 + 3x = -x + 4.
subtract 3x
1 = -4x + 4
subtract 4
-3 = -4x
divide by -4
(-3)/(-4) = (4x)/(-4) ⇌ x = 3/4
-x + 6 = 5 - 3x
subtract 5
-x + 1 = - 3x
add x
1 = -2x
A. 7/11
