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Sebastian Huang
Mathematics
9 January, 15:53
5x - 4 = - 3x + 12. Solve for x
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Nikolai Robinson
9 January, 15:58
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5x - 4 = - 3x + 12.
move - 3x to the other side
sign changes to + 3x
5x+3x-4 = - 3x+3x+12
5x+3x-4 = 12
move - 4 to the other side
sign changes to + 4
5x+3x-4+4 = 12+4
8x = 16
divide by 8 for both sides
8x/8 = 16/8
x = 2
Answer: x = 2
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