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15-01-2021
Mathematics

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if m ∟n, solve for x. (x + 21) (3x + 9) giving brainliest

if m n solve for x x 21 3x 9 giving brainliest class=

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tylermiller1437 tylermiller1437

15-01-2021

Answer:

x=15

Step-by-step explanation:

Add the two equations together because there is a 90 degree angle. You can add the two to get :

4x+30=90

-30 from both sides

4x=60

Divide by 4 on both sides to get your answer!

x=15

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