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lubasha [3.4K]
2 years ago
13

Find the value of x. 4x+15=28

Mathematics
2 answers:
melomori [17]2 years ago
7 0

4x+15=28

4x+15-15=28-15

4x=13

\displaystyle \frac{4x}{4} =\frac{13}{4}

\displaystyle x=3.25

Dominik [7]2 years ago
5 0

Answer:

x = 3 1/4

Step-by-step explanation:

4x+15=28\\Collect-like-terms\\4x = 28-15\\4x = 13\\Divide -both-sides-of-the-equation-by:4\\\frac{4x}{4} =\frac{13}{4} \\x = 13/4\\x = 3\frac{1}{4}

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So I think you should set up an equation like this: 14.95x+16.88y=131.18 , x+y=8

so x=8-y, plug this into the original equation:
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