3x + 5 = 4x - 10Add 10 to each side:3x + 15 = 4xSubtract 3x from each side:15 = x
10 -3x+8x = 25 -3x+8x = 25-10 5x = 15 x = 3
(2, -1)
x=10
3x+12x = 15 15x = 15 x = 1
x+5 = 3x+15 x-3x = 15-5 -2x = 10 x = -5
3x+5= 4x-10+10 +103x+15= 4x-3x -3x15=X
no
3x + 5 = 4x - 10Add 10 to each side:3x + 15 = 4xSubtract 3x from each side:15 = x
10 -3x+8x = 25 -3x+8x = 25-10 5x = 15 x = 3
10 - 3x = x - 2x + 40 10 - 3x = - x + 40 10 - 40 = 3x - x -30 = 2x -15 = x
(2, -1)
x=10
3x+12x = 15 15x = 15 x = 1
3x+5 = 4x-10 In algebra, what you do to one side you do the other Now you add 10 to both sides 3x+5 + 10 = 4x-10+10 3x +15 = 4x now subtract 3x from both sides 3x-3x +15 = 4x-3x 15 = x
3x + 2 = -10 3x = -12 x = -4
3x - 12 = 10x - 15 - 6x -10 3x - 12 = 4x -25 3x + 13 = 4x 13 = 4x - 3x 13 = x None?