1. Subtract 2x from each side: x + 2 = -5
2. Subtract 2 from each side: x = -7
The above method is correct, however I find it simplier to write out each step separately rather than subtracting 2x from each side automatically.
3x +2 =2x-5. Subtract 2x from the right and it must be subtracted from the left.
3x-2x+2=-5 Subtract the 2x from the left.
x+2 = -5 Subtract 2 from the left and it must also be subtracted from the right.
x = -5-2 Subtract it.
x =-7
2x + 2 = 3x - 57 = x
-3x+2 = 2x-8 8+2 = 2x+3x 10 = 5x x = 2
2x+3 = 3x+5 2x-3x = 5-3 -x = 2 x = -2
3x+1+2x-2 = 64 3x+2x = 64-1+2 5x = 65 x = 13
(-2, 4)
2x + 2 = 3x - 57 = x
3x + 5x = 2x + 28x = 2x + 26x = 2x = (2/6) = 1/3
-3x+2 = 2x-8 8+2 = 2x+3x 10 = 5x x = 2
2x+3 = 3x+5 2x-3x = 5-3 -x = 2 x = -2
3x - 2 = 2x + 4 3x - 2x = 4 + 2 x = 6
3x-2 = 2x+3 3x-2x = 3+2 x = 5
3x+1+2x-2 = 64 3x+2x = 64-1+2 5x = 65 x = 13
(-2, 4)
x + 2 = 3x-1 -2x = -3x = 1,5
x = 2
Y=2xx+y=3x+(2x)=33x=3x=1y=2x y=2*1y=2
simplify it, 7x-12=x+2+2x-3x 7x=2+12+3x-3x 7x=14 x=2