What is the solution to this equation? -8x + 4 = 36
O A. x= -4
O B. x = 4
O c. x= -5
O D. x = 5

A

Step-by-step explanation:

So we have the equation:

Subtract 4 from both sides:

Divide both sides by -8:

And we're done!

The answer is A

A. x = -4

Step-by-step explanation:

We are given the equation:

-8x+4=36

We want to solve for x. Therefore, we must isolate x on one side of the equation.

4 is being added to -8x. The inverse of addition is subtraction. Subtract 4 from both sides of the equation.

-8x+4-4=36-4

-8x=36-4

-8x=32

x is being multiplied by -8. The inverse of multiplication is division. Divide both sides of the equation by -8.

-8x/-8=32/-8

x= 32/-8

x=-4

Let’s check our solution. Plug -4 in for x and solve.

-8x+4=36

-8(-4)+4=36

32+4=36

36=36

This checks out, so we know our solution is correct.

The solution to the equation is A. x=-4

3x^3-x^2+6x-9