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3 years ago

3x - 12y = -30 and x - 6y = -12

Mathematics

2 answers:

forsale [732]3 years ago

8 0

check attached file it has the answers

3x =-18

X= -12

Marizza181 [45]3 years ago

3 0

Answer:

Step-by-step explanation:

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How to solve 4/7y-2 = 3/7 + 3/14

lisabon 2012 [21]

Solution

1) Simplify $\frac{4}{7y}$ to $\frac{4y}{7}$
$\frac{4y}{7}$ −2= $\frac{3}{7}$ + $\frac{3}{14}$

2) Simplify $\frac{3}{7}$ + $\frac{3}{14}$ to 914
 $\frac{4y}{7}$ −2= $\frac{9}{14}$

3) Add 2 to both sides
 $\frac{4y}{7}$ = $\frac{9}{14}$ +2

4) Simplify $\frac{9}{14
}$ +2 to $\frac{37}{14}$
$\frac{4y}{7}$ = $\frac{37}{14}$

5) Multiply both sides by 7
4y= $\frac{37}{14}$ ×7

6) Simplify $\frac{37}{14}$ ×7 to $\frac{259}{14}$
$\frac{4y}{7}$ = $\frac{259}{14}$

7) Simplify $\frac{259}{14}$ to $\frac{37}{2}$
$\frac{4y}{7}$ = $\frac{37}{2}$

8) Divide both sides by 4
y= $\frac{37}{2}$ ×4

9) Simplify 2×4 to 8
y= $\frac{37}{8}$

Hope this helps

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2 years ago

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alexandr402 [8]

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2 years ago

3(4a + 5) - 6a. Please answer this question if correct I will mark brainest.

mr Goodwill [35]

Answer:

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Step-by-step explanation:

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3 years ago

Read 2 more answers

What number is 120% of 12

Rasek [7]

120% of 12 is 14.4.I got this by doing this:

12/x=100/120
(12/x)*x=(100/120)*x - we multiply both sides of the equation by x
12=0.833333333333*x - we divide both sides of the equation by (0.833333333333) to get x
12/0.833333333333=x 
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2 years ago

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AnnyKZ [126]

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3 years ago