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Question

If 3s - 4 = s + 2, the value of s is .

A
2
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B
3
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C
6
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Solution

The correct option is B 3
The given expression is 3s - 4 = s + 2

Undo the subtraction on the left side using the addition property of equality.

3s - 4 + 4 = s + 2 + 4

⇒ 3s = s + 6

Undo the addition of variable on the right side by using the subtraction property of equality.

3s - s = s + 6 - s

⇒ 2s = 6

Undo the multiplication by using the division property of equality.

2s ÷ 2 = 6 ÷ 2

⇒ s = 3

Hence, the value of s is 3.
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