Question Simplify the expression 7x+9y Evaluate 5x+7y−x+2y+3xCalculate the sum or difference More Steps Evaluate 5x−x+3xCollect like terms by calculating the sum or difference of their coefficients (5−1+3)xCalculate the sum or difference 7x 7x+7y+2ySolution More Steps Evaluate 7y+2yCollect like terms by calculating the sum or difference of their coefficients (7+2)yAdd the numbers 9y 7x+9y Show Solution