4(1-x)+2x=-3(x+1 solve for x

Mathematics

1 answer:

ipn [44]3 years ago

6 0

Answer:

Step-by-step explanation:

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3x+1/5y=7 solve for y

Vladimir79 [104]

Hello!

First, let's write the problem.
$3x+\frac{1}{5}y=7$
Subtract 3x from both sides.
$3x+\frac{1}{5}y-3x=7-3x$
$\frac{1}{5}y=7-3x$
The opposite of division is multiplication, so we are going to multiply in order to undo the fraction.
$5\cdot \frac{1}{5}y=5\cdot \:7-5\cdot \:3x$

Our final answer would be,
$y=35-15x$

Thanks!
-TetraFish

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In the figure below, tan B = 4/3. If BC = 15 and DA = 3, what is the length of DE ?

jonny [76]

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