Answer:
16
Step-by-step explanation:
A right angle has the measurement of 90°. Set the expression equal to 90:
5x + 10 = 90
Isolate the variable, x. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS.
First, subtract 10 from both sides:
5x + 10 (-10) = 90 (-10)
5x = 90 - 10
5x = 80
Next, divide 5 from both sides:
(5x)/5 = (80)/5
x = 80/5
x = 16
16 is your possible value.
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