x+30 = 3x-50 x-3x = -50-30 -2x = -80 x = 40
2x - 3x = -x
What answer is this f(x)=3x+10 and g(x)=2x-4 find (f+g)(x)?
3x + 2x - 8x + 2x = -x
2x minus 3x is equal to -x.
2x+3x=50 5x=50 x=10
10 - 3x = x - 2x + 40 10 - 3x = - x + 40 10 - 40 = 3x - x -30 = 2x -15 = x
3x+9=2x+10 3x+9-2x=10 9+x=10 x=1
If: 3x+20 = 2x-10 Then: x = -30
2X + 50 = 5X - 10 subtract 2X from each side 50 = 3X - 10 add 10 to each side 60 = 3X divide each side by 3 20 = X check 2(20) + 50 = 5(20) - 10 40 + 50 = 100 - 10 90 = 90 checks
x+30 = 3x-50 x-3x = -50-30 -2x = -80 x = 40
6 - x + 7 - 3x - 5 = -2x - 10 ∴ x + 3x - 2x = 6 + 7 - 5 + 10 ∴ 2x = 18 ∴ x = 9
If 3x = x + 10 then 2x = 10 and x = 5
3x+10=14+2x so subtract 2x from both sides x+10=14 so x=14-10 so x = 4
3x+6 = x-10 3x-x = -10-6 2x = -16 x = -8
Ok so 2x + 3x + 2x + 3x = 180.... so combine like terms, 2x + 3x + 2x + 3x is 10x, because 2+3+2+3 is equal to 10, and then so 10x = 180, so divide each side by 10 because the "10" on the left side is multiplying the x, and we want "x" by itself and the opposite of multiplication is division, and 10x/10 is x and 180/10 is 18, so x = 18.
-3x+2 = 2x-8 8+2 = 2x+3x 10 = 5x x = 2