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3x+49=90
We simplify the equation to the form, which is simple to understand
3x+49=90
We move all terms containing x to the left and all other terms to the right.
+3x=+90-49
We simplify left and right side of the equation.
+3x=+41
We divide both sides of the equation by 3 to get x.
x=13.666666666667
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