Question

7x- 12 degrees x 3x+28 degrees

Answer 1

Step-by-step explanation:

7x-12=3x+28

We simplify the equation to the form, which is simple to understand

7x-12=3x+28

We move all terms containing x to the left and all other terms to the right.

+7x-3x=+28+12

We simplify left and right side of the equation.

+4x=+40

We divide both sides of the equation by 4 to get x.

x=10

Answer 2

Answer:

21x^2+196x-36x-336.

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