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3 years ago

8

Find the sum or difference

" id="TexFormula1" title=" \frac{5}{10} - \frac{3}{10} " alt=" \frac{5}{10} - \frac{3}{10} " align="absmiddle" class="latex-formula">

1 answer:

Paraphin [41]3 years ago

5 0

Answer:

0.2

Step-by-step explanation:

Or 2/10. is that right?

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Alja [10]

Step 1: It tells you that x = 4, so replace x with 4 in the equation. 4 + 3y = 16

Step 2: Use the substitution method to subtract 4 from both sides. (4-4) + 3y = (16 - 4) ——> 3y = 12

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3 years ago

What is the solution to the equation log(2x — 7) = log(5х + 2)?<br> NEEED ANSWER ASAP

slavikrds [6]

Answer:

"No Solution"

Step-by-step explanation:

We can use the log property shown below to simplify this:

$Log(a)=Log(b)\\Means\\a=b$

Since no "base" is given, we take base as "10" and use property to write:

$2x-7=5x+2$

Now, we solve for x:

$2x-7=5x+2\\5x-2x=-7-2\\3x=-9\\x=-3$

But we are NOT done. We have to take the value and put it into the equation to check if there is any NEGATIVE value, because we cannot take negative log.

Putting in LHS:

Log(2x - 7)

Log(2(-3) - 7)

Log(-6-7)

Log(-13)

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4 years ago