3y=7y+24.4
First, try to get all the y-terms on the same side of the equation. Easily done here by subtracting 7y from both sides
3y-7y=7y-7y+24.4
-4y=24.4
Now divide by -4
-4y/-4=24.4/-4
y=-6.1
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That depends on what the value of x is.
-2x plus 3y equals 1
2x-11
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2x + 3y = 17 3x + 4y = 24 (2x + 3x) + (3y + 4y) = (17 + 24) 5x + 7y = 41