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1 June, 18:55

What is 5x+15=75-25x

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  1. 1 June, 19:22
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    5x+15=75-25x (add 25x on both sides)

    (5x+25x) + 15=75 + (-25x+25x)

    30x+15=75 (minus 15 on both sides)

    30x + (15-15) = 75-15

    30x=60 (divide both sides by 30 to isolate x by itself)

    30x/30=60/30

    x=2
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