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Igoryamba
3 years ago
13

Combine like terms.

Mathematics
2 answers:
coldgirl [10]3 years ago
8 0

Answer:

To solve the question the answer is 35y2 - 5 (i think)

Step-by-step explanation:

Yes and it's actually very simple.

To start off:

Simplify the equation: multiply 7 by the numbers in the parentheses getting: 28y2 - 35 .......full equation: 7y2 + (28y2 - 35)

New equation: 7y2 + (28y2 - 35) now combine like terms this means adding each common variable together. in this case, 7y2 and 28y2 would be added together to simplify the equation. Add them together, the new equation is: 35y2 - 5

Lmk if you have any questions i hope this helps

lutik1710 [3]3 years ago
6 0

Answer:

7y^2+7\left(4y^2-5\right)=35y^2-35

Step-by-step explanation:

Given the expression

7y^2+7\left(4y^2-5\right)

First Apply distributive law to expand 7(4y² - 5) :  a\left(b-c\right)=ab-ac

7y^2\:+7\left(4y^2\:-\:5\right)\:=7y^2+7\cdot \:\:\:4y^2-7\cdot \:\:\:5

simplify

                               =7y^2+28y^2-35

Add like terms:  7y²+ 28y²=35y²

                                =35y^2-35

Therefore,

7y^2+7\left(4y^2-5\right)=35y^2-35

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I need help to solve it
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Answer:

She will earn £9.01 per hour after the pay rise

Step-by-step explanation:

Here, we want to calculate a value, given the percentage of the pay rise

From the question, the percentage is 6%

The pay rise is thus;

8.50 + 6% of 8.50

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3 years ago
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Colt1911 [192]

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It's closer to 1

Step-by-step explanation:

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2 years ago
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shutvik [7]

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Step-by-step explanation:

4 0
3 years ago
Add the equations. What value belongs in the green box? 3x + 2y = 9 -x - 2y = 4 [?] + [?] = [?] A. 4x B. 2x C. -3x D. -2x​
Naddika [18.5K]

Consider the first blank is the green box.

Given:

The equations are

3x+2y=9

-x-2y=4

To find:

The value belongs in the green box

Solution:

We have,

3x+2y=9        ...(i)

-x-2y=4        ...(ii)

Adding (i) and (ii), we get

3x+2y-x-2y=9+4

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2x+0=13

So, the value for the first black is 2x. It means the value belongs in the green box is 2x.

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