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What is the solution to the equation?  5(8 + 7) = 5 • x + 5 • 7

  A. x = 1   B. x = 5   C. x = 7   D. x = 8
User Ckv
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5(8+7)=5\cdot x+5\cdot7\\\\x=8\\\\Answer:D\\\\5\cdot x+5\cdot7=\underline{5}\cdot x+\underline{5}\cdot7=\underline{5}\cdot(x+7)=5\cdot(8+7)\iff x=8
User PillarOfLight
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