The variable is x.
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-2x-6 = 14 -2x = 14+6 -2x = 20 x = -10
the letter in 2x+6. The variable is the x.
First you get the variables on one side and the constants on the other. -2x = 14 Then you divide by -2 to get the variable alone. x = -7
2x/3 + 8 = 14 2x/3 = 6 2x = 18 x = 9
6x-y=-14 2x-3y=6