Solve for the varyable in 21 = 0.75

Answer: a=28

Step-by-step explanation:Simplifying

21 = 0.75a

Solving

21 = 0.75a

Solving for variable 'a'.

Move all terms containing a to the left, all other terms to the right.

Add '-0.75a' to each side of the equation.

21 + - 0.75a = 0.75a + - 0.75a

Combine like terms: 0.75a + - 0.75a = 0.00

21 + - 0.75a = 0.00

Add '-21' to each side of the equation.

21 + - 21 + - 0.75a = 0.00 + - 21

Combine like terms: 21 + - 21 = 0

0 + - 0.75a = 0.00 + - 21

-0.75a = 0.00 + - 21

Combine like terms: 0.00 + - 21 = - 21

-0.75a = - 21

Divide each side by '-0.75'.

a = 28

Simplifying

a = 28