4 (apples) plus 3 (apples) = 7 (apples).
4 (cows) + 3 (cows) = 7 (cows)
4 (x2y) + 3 (x2y) = 7 (x2y)
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y=xsquared-4x+2
4x+3y = 12 3y = -4x+12 y = -4/3x+4
since y = 3x+1 we have y squared =(3x+1) squared x^2 + y^2 = 25 x^2 + (3x+1)^2=25 x^2 + 9x^2+ 6x+1 = 25 10x^2 + 6x + 1 = 25 10x^2 + 6x -24 = 0 solve x from quadratic formula x = 1.28 y = 3x + 1 = 4.83
y=3x+3 -- This could be the formula for a line, where the slope is 3 and the y intercept is (0,3). In the next line the slope would be 4 and the y-intercept would be 5
If you mean: 3x+4y = 12 then y = -3/4x+3 whereas -3/4 or -0.75 is the slope and 3 is the y intercept