2x-6=4
6+4=2x
10=2x
10/2=x
5=x
x=5
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2x + 4 = 10 2x = 10 - 4 = 6 2x = 6 x = 6/2 = 3
2x - 4 = -10 2x = -10 +4 2x = -6 x = -3
2x + 4 = y ...............2x + 4 = y ....................2x + 4 = y .............2*(-6)+ 4 = y x - y = 2 .......<=> ...x - 2x - 4 = 2 .....<=> ...x = -6......... <=>.... x = -6 ..............<=> y = - 8 x = - 6
2x+4 = -16 2x = -16-4 2x = -20 x = -10
2X - 2 = 4X + 6 subtract 2x from both sides - 2 = 2X + 6 subtract 6 from both sides - 8 = 2X divide both sides by 2 - 4 = X ------------------------check in original equation 2(-4) - 2 = 4(-4) + 6 - 8 - 2 = - 16 + 6 - 10 = - 10 checks