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Question

Solve the following equation and find the missing term.
8x + 6 - 3x + ?5x + 4 = 1

A
-4
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B
3
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C
-2
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D
0
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Solution

The correct option is C -2
Given 8x + 6 - 3x + ?5x + 4 = 1

5x + 6 + ?5x + 4 = 1

Multipliying both sides with 5x + 4

5x + 6 + ?=1×(5x + 4)

5x + 6 + ?=5x + 4

Subtract 4 on both sides

5x + 6 + ? - 4=5x + 4 - 4

5x + 2 + ? =5x

Subtract 5x on both sides

5x + 2 + ? - 5x=5x - 5x

2 + ? =0

?=-2

The missing value in the given equation is -2.

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