2y - 9x = 14
2y = 14 + 9x
y = (14 + 9x) / 2
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U can subtract 18 from each side of the equation.
7x + y = 4y = 4 - 7x
2x + y = 3 and y = 5x - 11 1) Plug the second equation for y into the first 2) 2x + (5x - 11) = 3 3) Solve for X 4) 7x = 14 5) x = 2 6) Plug X into either equation to get Y 7) 2(2) + y = 3 8) y = -1
y=±√15
To solve for x when z equals y divided by x, you can rearrange the equation to isolate x. Start by multiplying both sides by x to get xz = y. Then, divide both sides by z to solve for x, giving you x = y/z. This is the solution for x when z equals y divided by x.