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Divide both sides by 42:

2x=-3, x=-3/2.

CHECK Put x=-3/2 into the original equation:

-8(9-9)=9(6-6), so 0=0 OK.

Another way to solve: rewrite the original equation:

-24(-2x-3)=18(-2x-3) by factorising the contents of the parentheses,

42(-2x-3)=0, so, since 42 is not zero, -2x-3=0, 2x=-3, x=-3/2.

by Top Rated User (717k points)

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