you mean: x+3x+3=x+18 so x=5
The given expression can be simplified to: 3X squared +27
-3x+7=2x-18 ---> 7+18=2x-3x ----> 25=5x ----> x=5
-3x + (-18) = 2x + 7 +18 +18 -3x = 2x +25 -2x -2x -5x = 25 ----- ----- -5 -5 x=-5 *------- equals a division line
3x + 5 = 6x + 23 -3x = 18 x = -6
4x+6-7x+9=18-3x+15=18-3x=3x=-1
you mean: x+3x+3=x+18 so x=5
xx+3x+7=6x+18 xx+3x+7-(6x+18)=6x+18-(6x+18) xx-3x-11=0 Factors of -11: 1,-11 -1,11 Doesn't factor evenly, use quadratic
The given expression can be simplified to: 3X squared +27
-3x+7=2x-18 ---> 7+18=2x-3x ----> 25=5x ----> x=5
-3x + (-18) = 2x + 7 +18 +18 -3x = 2x +25 -2x -2x -5x = 25 ----- ----- -5 -5 x=-5 *------- equals a division line
3x + 5 = 6x + 23 -3x = 18 x = -6
2x2-6x+2y+18 = 0. Subtract the 2y from both sides. 2x2-6x+18 = -2y. Divide all by -2 to get y by itself. -x2+3x-9 = y. This graph is going to be a parabola that opens downward, like a frown.
6-3x+12=0 6+12-3x=0 18-3x=0 18=3x x=6
x^2 + 3x + 7 = 6x + 18 x^2 - 3x - 11 = 0
They are: 6 and -3
3x + y = -1 y = -3x - 1 The graph is a straight line, with a slope of -3, passing through the point Y = -1 on the y-axis.