Where is y in this equation? 2x-3=9. First, you add 2 to both sides, and you get 2x=12. Divide both sides by 2;
so, x=6.
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y - 4 = 9 y - 4 + 4 = 9 + 4 y = 13
If x = -7, then x3 = -343 so that 2x3 = -686 y = 2 then 15 y = 30 So 2x3 + 15y = -686 + 30 = -656
Since the second equation is already solved for "y", you can replace "y" by "9" in the other equation. Then solve the new equation for "x".
3/Y+7\Y=9 =>Y=10\9
2x + 3y = 9x = 3, y = 1 therefore 6 + 3 = 9