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15 July, 05:28
Solve for x: 7 (x - 2) = 5 (x + 4)
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Lincoln Dorsey
15 July, 06:55
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7 (x - 2) = 5 (x + 4)
Multiply the first bracket by 7
(7) (x) = 7x
(7) (-2) = -14
Multiply the second bracket by 5
(5) (x) = 5x
(5) (4) = 20
7x-14=5x+20
Move 5x to the other side. Sign changes from - 5x to + 5x.
7x-5x-14=5x-5x+20
7x-5x-14=20
2x-14=20
2x-14+14=20+14
2x=34
Divide both sides by 2
2x/2=34/2
Answer: x=17
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Emilie Harper
15 July, 08:27
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7 (x-2) = 5 (x+4)
7x-14=5x+20
7x-5x=20+14
2x=34
x=17
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