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saw5 [17]
3 years ago
11

Please solve for x. (-: Also please show me a step-by-step, thanks! uwu

Mathematics
1 answer:
Stells [14]3 years ago
5 0

Answer:

x=27

Step-by-step explanation:

we know that

(3x+9)^o+90^o=180^o ----> by supplementary angles (form a linear pair)

Solve for x

Combine like terms

(3x+99)^o=180^o

subtract 99 both sides

3x=180-99\\3x=81

Divide by 3 both sides

x=27

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