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3x-5y-=0 and 9x=2y+7 solve by elimination and substitution method |
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Answer» First write the equation as3x - 5y = 4And 9x - 2y = 7 For eliminationMultiply the first eq by 3. This is eq3And the use elimination method that is to suctract the second equation with eq3You will get 13y = - 5y = - 5/13Put it in equation to get xX = 9/13 For substitution1st equation become 3x - 5y - 4 =03x= 4+5yX = 4+5y / 3Substitute this in the other equation and you will get y. |
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