-3x + (-18) = 2x + 7 +18 +18 -3x = 2x +25 -2x -2x -5x = 25 ----- ----- -5 -5 x=-5 *------- equals a division line
-2x+14=20 x=-3
-2x + 6 <= 4x + 18 -2x <= 4x + 12 -12 <= 6x -2 <= x
5x+18 = 2x+9 5x-2x = 9-18 3x = -9 x = -3 and y = 3
-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
2x + x + 4 +2x = x + 20 5x + 4 = x + 20 5x - x = 20 - 4 4x = 16 x = 4
2 + 2x = 18 2x = 18 - 2 2x = 16 x = 8
-2x+14=20 x=-3
-2x + 6 <= 4x + 18 -2x <= 4x + 12 -12 <= 6x -2 <= x
size 18
2x + y = 20 y = -2x + 20 Slope = -2 m=-2
5x+18 = 2x+9 5x-2x = 9-18 3x = -9 x = -3 and y = 3
-3x+7=2x-18 ---> 7+18=2x-3x ----> 25=5x ----> x=5
2x + 20 = 3x20 = 3X - 2X20 = X
-2x+20 = 3x 20 = 3x+2x 20 = 5x 4 = x So x = 4
It is simply 2x+20 which is an algebraic expression that has no equality sign.