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Solve for the varyable in 21 = 0.75

User Moltarze
by
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1 Answer

3 votes

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

User Ankit Kulkarni
by
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