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Marianna [84]
2 years ago
14

Find the value of X.

Mathematics
2 answers:
sasho [114]2 years ago
7 0
X=17
Step by step explanation
9x-4=12x-55
-9x -9x
-4=3x-55
+55 +55
51/3=3x/3
X=17
AlexFokin [52]2 years ago
4 0

Answer:

If we don't what you're solving for we can't solve for x

Step-by-step explanation:

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2 years ago
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Kobotan [32]

Answer:

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Step-by-step explanation:

For every $3.5 is 1 mile.

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3 0
3 years ago
-3x - y = 15<br> y = -8x<br> (x, y) = (0<br> )<br> 9,0
Nataly [62]
<h3>The solution is (x, y) = (3, -24)</h3>

<em><u>Solution:</u></em>

<em><u>Given system of equations are:</u></em>

-3x - y = 15 -------- eqn 1

y = -8x ------ eqn 2

We have to find solution of (x, y)

We can solve by substitution method

<em><u>Substitute eqn 2 in eqn 1</u></em>

-3x - (-8x) = 15

-3x + 8x = 15

5x = 15

Divide both sides by 5

<h3>x = 3</h3>

Substitute x = 3 in eqn 2

y = -8(3)

<h3>y = -24</h3>

Thus solution is (x, y) = (3, -24)

4 0
3 years ago
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