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2 votes
0.7(3s+4)−1.1s=7.9 I need a answer

User Ashna
by
4.5k points

2 Answers

1 vote

Answer:


\boxed {s = 5.1}

Explanation:

Solve for the value of
s:


0.7(3s + 4) - 1.1s = 7.9

-Use Distributive Property:


0.7(3s + 4) - 1.1s = 7.9


2.1s + 2.8 - 1.1s = 7.9

-Combine like terms:


2.1s + 2.8 - 1.1s = 7.9


s + 2.8 = 7.9

-Subtract
2.8 to both sides:


s + 2.8 - 2.8 = 7.9 - 2.8


\boxed {s = 5.1}

So, the value of
x is
5.1.

User Gunesevitan
by
4.0k points
4 votes

First, expand the bracket

2.1s + 2.8 - 1.1s = 7.9

Next, collect like terms

s + 2.8 = 7.9

Lastly subtract 2.8 from 7.9 to get your answer.

s = 5.1

(Hope this helps! ^^)

User Niko B
by
3.6k points