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Alexxandr [17]
3 years ago
10

Need help now please help

Mathematics
1 answer:
siniylev [52]3 years ago
5 0
I give numbers to the box, box 1 to 9 so you can understand my explanation well. See image attached.

Fill in Box 4
box 4 multiplied by box 2 is equal to box 5
box 4 × 0.3 = 1.5
box 4 = \dfrac{1.5}{0.3}
box 4 = 5
The number on the box 4 is 5

Fill in Box 8
box 2 multiplied by box 7 is equal to box 8
0.3 × 15 = box 8
box 8 = 0.3 × 15
box 8 = 4.5
The numbers on the box 8 is 4.5

Fill in Box 3
box 3 multiplied by box 7 is equal to box 9
box 3 × 15 = 6
box 3 = \dfrac{6}{15}
box 3 = 0.4
The numbers on the box 3 is 0.4

Fill in Box 6
box 3 multiplied by box 4 is equal to box 6
0.4 × 5 = box 6
box 6 = 0.4 × 5
box 6 = 2
The number on the box 6 is 2

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Hello!

So, here you want to do the distributive property.

Start on the left side of the + sign...

-3*u = -3u

-3*3 = -9

So we now we have:

(-3u + -9) + 4(4u + 2)

Now we focus on the right side of the + sign...

4*4u=16u

4*2=8

So now we have:

(-3u + -9) + (16u + 8)

Now you want to combine like terms. Start by adding terms with the same variable. So, we need to add -3u and 16u

<em>-3u + 16u =</em> 13u

Now we have:

13u + -9 + 8

Now add the constants, -9 + 8

-9 + 8 = -1

So, the simplified expression would be:

13u - 1 or 13u + -1

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