8x - 4x + 7 = 94x + 7 = 94x = 9-74x = 2x = 4/2x = 1/2x = 0.5
It is an algebraic expression involving x. Of do you mean 'what is x if 2x - 9 equals 9?' 2x - 9 = 9 ⇒ 2x - 9 + 9 = 9 + 9 ⇒ 2x = 18 ⇒ 2x ÷ 2 = 18 ÷ 2 ⇒ x = 9
2x-3=9 so 2x=12 and x=6
2x + 3 = 9xSubtract 2x from each side:3 = 7xDivide both sides by 7:3/7 = x
4x - 7 = 2x + 5 2x - 7 = 5 2x = 12 x = 6.
2x-9=7 2x=16 X=8
4-2x-9 = -19 -2x = -19-4+9 -2x = -14 x = 7
8x - 4x + 7 = 94x + 7 = 94x = 9-74x = 2x = 4/2x = 1/2x = 0.5
2x + 52 = 7 2x + 25 = 7 2x = 7 - 25 2x = -18 x = -18/2 x = -9
2x+3=9 2x=9-3 2x=6 2x/2=6/2 X=3
9
It is an algebraic expression involving x. Of do you mean 'what is x if 2x - 9 equals 9?' 2x - 9 = 9 ⇒ 2x - 9 + 9 = 9 + 9 ⇒ 2x = 18 ⇒ 2x ÷ 2 = 18 ÷ 2 ⇒ x = 9
2x+3=9x 3=9x-2x 3=7x x=3/7
x = 7
If x=4 then 2x+7 =
9
8x-2 = -9+7x8x-7x = -9+2x=-7