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sp2606 [1]
4 years ago
13

How can I solve this please: Solve for q: (4q - 6n)/(3m) = f

Mathematics
2 answers:
Ronch [10]4 years ago
7 0
(4q-6n) /(3m) =f
4q-6n=f(3m)
4q=3fm+6n
q=(3fm+6n)/4




Nataly_w [17]4 years ago
3 0

General Idea:

Solving for a variable means getting that variable by itself by UNDOING whatever is done to it. We need to perform reverse operation to UNDO.

Applying the concept:

\frac{4q-6n}{3m}=f\\  \\ To \; undo \; 3m\; in\; the \; denominator \; 3m, \; MULTIPLY \; 3m\; on\; both\; sides

3m \times \frac{4q-6n}{3m}=f \times 3m\\  \\ 4q-6n=3mf\\Add \; 6n \; both\; sides\\ \\ 4q-6n+6n=3mf+6n\\ Combine \; like\; terms\\ \\ 4q=3mf+6n\\Divide \;  4\; on\; both\; sides\\ \\ \frac{4q}{4} =\frac{3mf+6n}{4} \\ Simplify\; fraction\; in\; left\; sides\\ \\ q=\frac{3mf+6n}{4}

Conclusion:

Solving \; the \; equation \;  \frac{4q-6n}{3m}=f \; for q, \; we get...\\ \\q=\frac{3mf+6n}{4}

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