Question Solve the equation x=21Alternative Form x=0.5 Evaluate 9x+9+3x=15Add the terms More Steps Evaluate 9x+3xCollect like terms by calculating the sum or difference of their coefficients (9+3)xAdd the numbers 12x 12x+9=15Move the constant to the right-hand side and change its sign 12x=15−9Subtract the numbers 12x=6Divide both sides 1212x=126Divide the numbers x=126Solution x=21Alternative Form x=0.5 Show Solution Rewrite the equation 2x=1 Evaluate 9x+9+3x=15Evaluate More Steps Evaluate 9x+9+3xAdd the terms More Steps Evaluate 9x+3xCollect like terms by calculating the sum or difference of their coefficients (9+3)xAdd the numbers 12x 12x+9 12x+9=15Move the constant to the right side 12x=6Solution 2x=1 Show Solution Graph
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