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3x+4x+5=3
We simplify the equation to the form, which is simple to understand
3x+4x+5=3
We move all terms containing x to the left and all other terms to the right.
+3x+4x=+3-5
We simplify left and right side of the equation.
+7x=-2
We divide both sides of the equation by 7 to get x.
x=-0.28571428571429
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