2x+3-7=0
2x=4
x=2
3x2 + 2x - 8 = 0 is a quadratic equation.
3x - 2x + 4 = 0 3x - 2x = -4 x = -4
x=0
y - 4 = 2x +1y = 2x + 5The two intercept points are (0, 5) and (-5/2, 0)
If: 2x+5y = 2 and -3x-y = -3Then it works out that: x = 1 and y = 0
x = 0
4+2x-2x+1=13+6 Combine like terms. (4+1=5; 2x-2x=0; 13+6=19) 5=19 This problem has no solution.
2x = -7 - 8y
If -2x +14 = 0, -2x = -14, or x = 7.
-2x+16 = 0 -2x = -16 x = 8
x2-2x-10-5 = 0 x2-2x-15 = 0 (x+3)(x-5) = 0 x = -3 or x = 5
It is a quadratic equation with one unknown variable, x which has no real roots.