Hey!
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Solution:
-5x + 15 = 35 - 10x
~Subtract 15 to both sides
-5x + 15 - 15 = 35 - 10x - 15
~Simplify
-5x = 20 - 10x
~Add 10x to both sides
-5x + 10x = 20 - 10x + 10x
~Simplify
5x = 20
~Divide 5 to both sides
5x/5 = 20/5
~Simplify
x = 4
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Answer:
x = 4
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Hope This Helped! Good Luck!