2 answers:
45 = 2x - 5
Add five to each side
50 = 2x
divide both sides by 2
25 = x
the value of x is 5
<em>Hoped this helped!</em>
Answer: the value of x is 70
Steps:
the angles 45 and (2x-5) are supplementary, so they add up to 180 degrees. We use that property to solve for x:
2x-5 + 45 = 180
2x = 140
x=70
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