2x - 6 = 4 2x = 4 + 6 = 10 x = 10/2 = 5 ∴ x = 5
For example, if you have (0, 6) or (3, 1). Which of them is a solution to y - 2x = 6? Check (0, 6): y - 2x = 6, substitute 0 for x, and 6 for y into the equation 6 - 2(0) =? 6 6 - 0 =? 6 6 = 6 True, then (0, 6) is a solution. Check (3, 1): y - 2x = 6, substitute 3 for x, and 1 for y into the equation 1 - 2(3) =? 6 1 - 6 =? 6 -5 = 6 False, then (3, 1) is not a solution.
If: y = x+6 and y = 2x Then: x+6 = 2x And: 6 = 2x-x => 6 = x So: x = 6 and y = 12
2x + 4 = 162x + 4 - 4 = 16 - 42x = 122x/2 = 12/2x = 6
{-1,-2}
-2x - 2 = 4-2x = 4 + 2-2x = 6x = 6/-2x = -3Check:-2(-3) - 2 = 46 - 2 = 44 = 4
Solution: 2x + 6 = 2 2x = -4 x = -2 Check: LHS = 2*(-2) + 6 = -4 + 6 = 2 = RHS
4+2x-2x+1=13+6 Combine like terms. (4+1=5; 2x-2x=0; 13+6=19) 5=19 This problem has no solution.
No. If x = -2, then y = -(2x) -(+6) = -2*(-2) - 6 = +4 - 6 = -2
5 - 2x = 8 x = -1 and 1/2 4x = 6 x = 6/4 or 3/2
(x-6)(x+4) = 0 x = 6 or x = -4
2x + 4 is an expression, not an equation. There can be no solution set for an expression.
No because x = 2
2x 4 10 is not an equation.
2x-6=4 6+4=2x 10=2x 10/2=x 5=x x=5
2x + 4 = 10 2x = 10 - 4 = 6 2x = 6 x = 6/2 = 3
2x-6=7, x=?