2x - 6 = 4
First you must add 6 to both sides of the equation so you will get 2x = 10
Next, you will divide both sides of the equation by 2 and you will get x = 5.
Finally, you may check your answer by substituting 5 in for x in the original equation:
2x - 6 = 4
2(5) - 6 = 4
10 - 6 = 4
4 = 4
Since this is a true statement, you have verified that the answer is 5 for x.
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x = 3 y = 4 2x + y - 1 = (6) + (4) - 1 = 9
2x-y = 4 and 2y = 4x-6 pick either equation and solve for one of the variables the first equation: y = -4 + 2x plug in the value of variable you solved for into the other equation 2(-4 + 2x) = 4x -6 then solve -8 + 2x = 4x-6 -2 = 2x x= -1 then plug in the value you have found into either original equation to find the value of the other variable 2(-1) - y = 4 -2 - y = 4 -y = 6 y = -6
6
2x+3y = 6 2x+3(0) = 6 2x = 6 x = 6/2 x = 3
2x+2=x+6 first subtract 2x. -2x -2x2=-1x+6 then subtract 6-6 -6-4=-1x finally divide by -1x=4 X equals four.