3 years ago

What is x in the equation please help.

Mathematics

2 answers:

finlep [7]3 years ago

4 0

X=12
(x+42)+3x=90
4x+ 42 = 90

iogann1982 [59]3 years ago

3 0

Answer:

Step-by-step explanation:

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I need help solving this for pre calc

Katarina [22]

Starting with:

$\frac{2p}{p+1} + \frac{3}{p-1} = \frac{15-p}{p^{2}-1}$

First, the difference of 2 squares shows that $p^{2} - 1 = (p+1)(p-1)$

Sub that in and multiply both sides by $(p-1)(p+1)$ :

$\frac{2p(p+1)(p-1)}{p+1} + \frac{3(p-1)(p+1)}{p-1} = \frac{(15-p)(p-1)(p+1)}{(p-1)(p+1)}$

This easily simplifies to $2p(p-1) + 3(p+1) = 15 - p$

See if you can continue from here. If not, leave a comment and I or someone else can show you the rest.

7 0

4 years ago

What is the value of x in equation (-35)^x = 1

FinnZ [79.3K]

Answer:

x = 0.

Step-by-step explanation:

(-35)^x = 1

Now any number to the power 0 is 1.

So x = 0.

5 0

4 years ago