x = -32/3
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2y = 4x - 16 5y = 4x + 8 Subtract the first equation from the second: 3y = 24 so that y = 8 Substitute this into the first equation: 16 = 4x - 16 ie 32 = 4x so that x = 8 So the solution is (8, 8)
If the equation is -4x + 2 = 26, then you can solve like so: -4x + 2 = 26 -4x = 26 - 2 = 24 4x = -24 x = -6 Check: -6 * -4 = 24, 24 + 2 = 26
If: 4x+(-12) = 8 then 4x = 20 and x = 5
The inverse for f(x) = 4x + 8 isg(x) = x/4 - 2
x= 24x2 = 8