x = 0
9
x equals 8
12!
x + 3 = 2x 3 = x x cannot be 2
12x = x + 3 11x = 3 x = 3/11
Yes. According to the commutative property of addition: x + 3 = 3 + x
2x + 7 = x + 3 x + 7 = 3 x = -4
you mean: x+3x+3=x+18 so x=5
2x = x+3 2x-x = 3 x = 3
6*x + 30 + 4*x = x+3; the solution is x = -3
it equals 3.
6