2x -6 = 4
then 2x = 4 +6
x=10/2 = 5
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6 + 2x = x - 6 2x - x = -6 -6 x = -12
2x+y = 10 x +y = 4 Subtract bottom equation from top equation: x = 6 Substitute the value of x into the equations to find the value of y: x = 6 and y = -2
x = 5
6 - 3x = 4 - 2x 6 = x + 4 x = 2 Check it. 6 - 6 = 4 - 4 It checks.
3x - 2 = 2x + 4 3x - 2x = 4 + 2 x = 6