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Y = 5x-3
If you want to solve for X, you have to make it all lonely.
y + 3 = 5x
(y + 3) / 5 = x
TADA
y = 5x3 + 6 is a cubic equation, not a linear equation. Linear equations contain only terms of degree 0 (i.e. constants) and terms of degree 1.
y = 5x3 + 5 is a cubic equation. You cannot solve for x (or y), because there are two variables and only one equation. If you graph this, however, you will see a curve that passes through all possible points that make this equality true.
Slope for the equation y equals 7 is zero.
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".
If the equation is: y = -x then the slope is -1 and there is no y intercept