2 + 2x = 18 2x = 18 - 2 2x = 16 x = 8
16 + 2x = 10 + 8x 2x - 8x = 10 - 16 -6x = -6 x = 1 Check: 16 + 2(1) = 10 + 8(1) 18 = 18
-2x+16 = 0 -2x = -16 x = 8
-3x + (-18) = 2x + 7 +18 +18 -3x = 2x +25 -2x -2x -5x = 25 ----- ----- -5 -5 x=-5 *------- equals a division line
How do you add 2x plus 3y equals 18 in 5x-y equals 11
5x+18 = 2x+9 5x-2x = 9-18 3x = -9 x = -3 and y = 3
-5x+3(x+8)=16-2x
2x+4 = -16 2x = -16-4 2x = -20 x = -10
y=6x-16 y=-2x+8
2x + 10 = 182x = 8x = 4
8x + 16 = 6x -> 2x + 16 = 0 -> 2x = -16 -> x = -8
2x + 5y = 16 -2x - 3y = -14 2y = 2 y = 1 / x = 5.5 (5.5,1) or (5 1/2,1)