Question Factor the expression 81(160−7x) Evaluate 20−87xSolution 81(160−7x) Show Solution Find the roots x=7160Alternative Form x=22.8˙57142˙ Evaluate 20−87xTo find the roots of the expression,set the expression equal to 0 20−87x=0Move the constant to the right-hand side and change its sign −87x=0−20Removing 0 doesn't change the value,so remove it from the expression −87x=−20Change the signs on both sides of the equation 87x=20Multiply by the reciprocal 87x×78=20×78Multiply x=20×78Solution More Steps Evaluate 20×78Multiply the numbers 720×8Multiply the numbers 7160 x=7160Alternative Form x=22.8˙57142˙ Show Solution
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