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4/7X-3=13 Want to check my answer. Is it x=28 ?

0 votes
Please help.
asked Mar 4, 2013 in PRE-ALGEBRA by angel12 Scholar

1 Answer

0 votes

Addition property of equality If a = b then a + c = b + c
add 3 to each side
4/7X - 3 +3 =13 +3
Additive inverse property a + - a = -a + a = 0
4/7X = 16
multiply each side by 7
4X = 16 * 7
divide each side by 4
X = 112/4 = 28
Yes your answer is correct.

answered Mar 6, 2013 by Naren Answers Apprentice

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