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2.5b+2.5=7
We simplify the equation to the form, which is simple to understand
2.5b+2.5=7
We move all terms containing b to the left and all other terms to the right.
+2.5b=+7-2.5
We simplify left and right side of the equation.
+2.5b=+4.5
We divide both sides of the equation by 2.5 to get b.
b=1.8
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