x + 18 + x = 44
Fist, sum like terms ( x with x )
x + x + 18 = 44
2x + 18 = 44
Subtract 18 from both sides of the equation
2x + 18 - 18 = 44 - 18
2x = 26
Divide both sides by 2
2x/2 = 26/2
x = 13
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