5(a-1) - 15 = 3(a+2) + 4
Open all parenthesis and distribute
5a - 5 - 15 = 3a + 6 + 4
Simplify
5a - 20 = 3a + 10
Add both sides by 20 and subtract both sides by 3a
2a = 30
a = 15
Answer:
1=51°
2=18°
3=123°
4=39°
Step-by-step explanation:
<span>im pretty sure its C $0.12
best of luck hope i helped :)
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