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Best Answer

combine like terms.

3x+1+4x-5=31

3x+4x=7x

7x+1-5=31

1-5=-4

7x-4=31

then solve it

7x=35

x=5

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βˆ™ 12y ago
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Q: How do you slove 3x plus 1 plus 4x-5 equals 31?
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