7x + 4 = 2x + 5
Subtract 4 from each side of the equation:
7x = 2x + 1
Subtract 2x from each side:
5x = 1
Divide each side by 5:
x = 1/5 = 0.2
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x=2, 3, 4...
7
Y^2 = 125 Y = +/- sqrt(125) Y = +/- 5sqrt(5)
3x - 5 = 48 So 3x = 53 and x = 53/3 = 17.66...
X2 - 3X - 4 = 0factored(X + 1)(X - 4)----------------X = - 1X = 4-------------------(- 1, 0) and (4, 0)================solution set of X interception points