isabellarenee
isabellarenee isabellarenee
  • 25-09-2018
  • Mathematics
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Gal52 Gal52
  • 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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