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Math - 5a=100

by Justin Watson
(Lexington, Ms, USA)











































What is the equation and the solution for 5a=100 ?

Solve for "a", and then check the solution by substituting the answer for "a" in the original equation.

Show work, step by step.

Comments for Math - 5a=100

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Oct 19, 2011
Solve Equation
by: Staff


Question:

by Justin Watson
(Lexington, Ms, USA)


what is the equation and the solution for 5a=100



Answer:

5a = 100

To solve for a, you can divide each side of the equation by 5. This division will remove the 5 from the left side of the equation.

5 * a = 100

(5 * a) / 5 = 100 / 5

(a) * (5 / 5) = 100 / 5

(a) * (1) = 100 / 5

(a) = 100 / 5

a = 100 / 5

a = 20


Check your work. Substitute 20 for the variable a in the original equation.

5a = 100

5 * 20 = 100

100 = 100→ a = 20 is a valid solution


Thanks for writing.

Staff
www.solving-math-problems.com



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