2/3x - 21/4 = 27/4 x=

x=-63/73

Step-by-step explanation:

Multiply both sides by 12, Move constant to the right hand side and change its sign, Move variable to the left hand side and change its sign, collect like terms, divide both sides of the equation by -73, x=-63/73 (- 63 over 73)

X= -63/73

Step-by-step explanation:

2/3x - 21/4 = 27/4 x=

8x-63=81x

8x=81x+63

8x-81x=63

-73x=63

x=-63/73

HOPE THIS HELPS! :)

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

answer: x=60