Angles Q & R are supplementary. If angle Q=4x+9 & R=8x+3, what is the measure of each angle?

1 answer:

3 0

4x+9+8x+3=180
12x+12=180
12x=180-12
12x=168
x=168/12
x=14

1. Q= 4x+9
4(14) +9
56+9
Q= 65
2. R= 8x+3
8(14) +3
112+3
R= 115

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