Help me plz its about solving system by substitution

x=-4

Step-by-step explanation:

-3/2x+5 = 1/2x-3

-1/2x       -1/2x

-4/2x+5=-3

        -5  -5

-4/2x=-8   ----->   =

-2x=8

x=-4

x = ± 6i

step-by-step explanation:

x^2 = -36

take the square root of each side

sqrt(x^2) = sqrt(-36)

we know sqrt(ab) = sqrt(a) sqrt(b)

x = ±sqrt(36) sqrt(-1)

we know that sqrt (-1) = i

x = ± 6i

the square root of what number? if you add that, then someone will probably answer the question.