x = 4
X=-7
x = 7
18
x = 3 y = 4 2x + y - 1 = (6) + (4) - 1 = 9
x = 4
2x -6 = 4 then 2x = 4 +6 x=10/2 = 5
2x - 6 = 4 2x = 4 + 6 = 10 x = 10/2 = 5 ∴ x = 5
5
X=-7
2x - 4 = 12Add 4 to each side:2x = 16Divide each side by 2:x = 8
x = 7
18
x = 3 y = 4 2x + y - 1 = (6) + (4) - 1 = 9
If x=4 then 2x+7 =
X=7
It is an equation and the value of x is 1