Question Simplify the expression 7x Evaluate −2x−(−9x)Rewrite the expression −2x+9xCollect like terms by calculating the sum or difference of their coefficients (−2+9)xSolution 7x Show Solution Find the roots x=0 Evaluate −2x−(−9x)To find the roots of the expression,set the expression equal to 0 −2x−(−9x)=0Subtract the terms More Steps Simplify −2x−(−9x)Rewrite the expression −2x+9xCollect like terms by calculating the sum or difference of their coefficients (−2+9)xAdd the numbers 7x 7x=0Solution x=0 Show Solution