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25-09-2018
Mathematics

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How do I solve this?

How do I solve this class=

Respuesta :

25-09-2018

Complementary is 90 degrees.

Setting the equation
7x+4+4x+9=90
Combining like terms
11x+13=90
Subtract
11x=77
Divide
x=7

Plug the value of x into each of the equations

7(7)+4
49+4
53=<A

4(7)+9
28+9
37=<B

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