4+2(1 + x) = 12 what's the answer and how to solve ?

4 + 2(1 + x) = 12

Distribute 2 inside the parentheses.

4 + 2 + 2x = 12

Combine like terms.

6 + 2x = 12

Subtract 6 from both sides.

2x = 6

Divide both sides by 2.

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6