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2v-10+7v+4=0
We simplify the equation to the form, which is simple to understand
2v-10+7v+4=0
We move all terms containing v to the left and all other terms to the right.
+2v+7v=0+10-4
We simplify left and right side of the equation.
+9v=+6
We divide both sides of the equation by 9 to get v.
v=0.666666666667
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