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I had the same problem. cross multiply -10/ 2/3 = y/12 -10 * 12 2/3 * y then do it like a regular equation
2/3y=-120 divide y=-20
got it? or should I explain further?
it's -10 * 12 then 2/3 * y that's cross-multiplying
basically write up you're equation as -10 over 2/3 is equal to y over 12 then put an x across the equal sign and multiply the number at each end of the lines on the x. Is that easier to understand?
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