Solve d=2(7 w) 3d=15(7-w) - ScanMath

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Type your math problem... d=2(7 w) 3d=15(7-w)

Question

Solve the system of equations

Solve using the substitution method

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Solve using the elimination method

(d_{1}, w_{1}) = (0, 7) (d_{2}, w_{2}) = (\frac{1465}{14}, \frac{1}{42})

Evaluate

{d = 2 \times 7 w \times 3 d 2 \times 7 w \times 3 d = 15 (7 - w)

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{d = 42 w d 2 \times 7 w \times 3 d = 15 (7 - w)

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{d = 42 w d 42 w d = 15 (7 - w)

Solve the equation

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{d = 0 \cup w = \frac{1}{42} 42 w d = 15 (7 - w)

Evaluate

{d = 0 42 w d = 15 (7 - w) \cup {w = \frac{1}{42} 42 w d = 15 (7 - w)

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{d = 0 w = 7 \cup {w = \frac{1}{42} 42 w d = 15 (7 - w)

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{d = 0 w = 7 \cup {d = \frac{1465}{14} w = \frac{1}{42}

Check the solution

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{d = 0 w = 7 \cup {d = \frac{1465}{14} w = \frac{1}{42}

Check the solution

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{d = 0 w = 7 \cup {d = \frac{1465}{14} w = \frac{1}{42}

Solution

(d_{1}, w_{1}) = (0, 7) (d_{2}, w_{2}) = (\frac{1465}{14}, \frac{1}{42})

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