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I need some help guys !! Solve using substitution: 5y – x – 6 = 0 -3x + 6y = -9
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Put one of those equations in terms of x, so rearrange terms so that x appears only on the left-hand side, then substitute this x-equation into the x variable in the second equation. Then you can solve for y. Once you know y, then solve for x.
how do we do that
firstly make one of the variable the subject say x in 5y-x-6=0 x=5y-6 then subtitute5y-6 in the 2nd equation -3(5y-6)+6y=-9 that makes -15y+18+6y=-9 then rearagnge to solve for y
then u can solve for x using y you have just solved for.
okay thanks
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