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It is +4x
8x-5=23+4x 8x-5-4x=23+4x-4x 4x-5=23 4x-5+5=23+5 4x=28 4x/4=28/4 x=7
To find the inverse, replace y with x, and x with y. So, the inverse of the equation is: x = 4yWhich is equal to:y = x/4
for variables x and y and constanat k -
4x+5 = -9 4x = -9-5 4x = -14 x = -3.5