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3x+15/6+x+42/7=13
We simplify the equation to the form, which is simple to understand
3x+15/6+x+42/7=13
Simplifying:
3x+2.5+x+42/7=13
Simplifying:
3x+2.5+x+6=13
We move all terms containing x to the left and all other terms to the right.
+3x+1x=+13-2.5-6
We simplify left and right side of the equation.
+4x=+4.5
We divide both sides of the equation by 4 to get x.
x=1.125
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