Here are the steps:
-- Write the equation.
-- Subtract 7 from each side of the equation.
-- Subtract 4x from each side.
-- Divide each side by 5.
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9x = 4x + 45 5x = 45x = 9
9x = 60x = 60/9 = 6 2/3 (or 6.67)
4x+7=9x+7 -5x=0 x=0
9x + 8 = 4x + 23Subtract 8 from both sides9x = 4x + 15Subtract 4x from both sides5x = 15Divide both sides by 5x = 3
9x-5x=4x, 7/4=1.75, x=1.75