To get a linear equation out of x-4-x-2-4-7- we use

The correct option is A cross multiplicationx+4/x 2 = 4/7 is the given equation. Now, if we cross multiply, we have nbsp; (x+4) × 7 = 4 × (x 2) 7x + 28 = 4x ...

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Standard VIII

Mathematics

Word Problems in Multiplication and Division

To get a line...

Question

To get a linear equation out of $\frac{x + 4}{x - 2} = \frac{4}{7}$ , we use ________.

cross multiplication

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long division

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distributive multiplication

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None of the above

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Solution

The correct option is A cross multiplication
$\frac{x + 4}{x - 2} = \frac{4}{7}$ is the given equation.
Now, if we cross multiply, we have
$(x + 4) \times 7 = 4 \times (x - 2)$
$7 x + 28 = 4 x - 8$
which is a linear equation in $x$ .

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To get a linear equation out of x+4x−2=47, we use ________.

The correct option is A cross multiplicationx+4x−2=47 is the given equation. Now, if we cross multiply, we have (x+4)×7=4×(x−2) 7x+28=4x−8 which is a linear equation in x.

To get a linear equation out of $\frac{x + 4}{x - 2} = \frac{4}{7}$ , we use ________.

The correct option is A cross multiplication
$\frac{x + 4}{x - 2} = \frac{4}{7}$ is the given equation.
Now, if we cross multiply, we have
$(x + 4) \times 7 = 4 \times (x - 2)$
$7 x + 28 = 4 x - 8$
which is a linear equation in $x$ .