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Standard VIII

Mathematics

Solving Equations with Linear Expressions on One Side and Numbers on the Other Side

If 7x-9 = 1...

Question

If $7 x - 9 = 16$ , then $x$ is equal to:

x = \frac{16}{2}

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x = \frac{7}{7}

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x = \frac{25}{7}

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x = \frac{2}{16}

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Solution

The correct option is A $x = \frac{25}{7}$
Given, $7 x - 9 = 16$
Add $9$ on both the sides, we get
$7 x - 9 + 9 = 16 + 9$
$∴ 7 x = 25$
Divide $7$ on both the sides,
$∴ x = \frac{25}{7}$
Therefore, C is the correct answer.

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If 7x−9=16, then x is equal to:

The correct option is A x=257Given, 7x−9=16Add 9 on both the sides, we get7x−9+9=16+9∴7x=25Divide 7 on both the sides,∴x=257Therefore, C is the correct answer.

If $7 x - 9 = 16$ , then $x$ is equal to:

The correct option is A $x = \frac{25}{7}$
Given, $7 x - 9 = 16$
Add $9$ on both the sides, we get
$7 x - 9 + 9 = 16 + 9$
$∴ 7 x = 25$
Divide $7$ on both the sides,
$∴ x = \frac{25}{7}$
Therefore, C is the correct answer.