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1 year ago

Please answer with clear instructions so that i can apply this to other questions.

Mathematics

1 answer:

xeze [42]1 year ago

7 0

Answer:

x=10/7

Step-by-step explanation:

simplify both sides of the equation

2 * 2 + 6 = 7x

4 + 6 = 7x

combine like terms

(4 + 6) = 7x

10 = 7x

flip the equation

7x = 10

divide both sides by 7

7x/7 = 10/7

answer is 10/7

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Read 2 more answers

a square painting has an area of 81x^2-90x-25. A second square painting has an area of 25x^2+30x+9. What is an expression that r

galina1969 [7]

Answer:

The answer in the procedure

Step-by-step explanation:

Let

A1 ------> the area of the first square painting

A2 ----> the area of the second square painting

D -----> the difference of the areas

we have

$A1=81x^{2}-90x-25$

$A2=25x^{2}+30x+9$

case 1) The area of the second square painting is greater than the area of the first square painting

The difference of the area of the paintings is equal to subtract the area of the first square painting from the area of the second square painting

D=A2-A1

$D=(25x^{2}+30x+9)-(81x^{2}-90x-25)$

$D=(-56x^{2}+120x+34)$

case 2) The area of the first square painting is greater than the area of the second square painting

The difference of the area of the paintings is equal to subtract the area of the second square painting from the area of the first square painting

D=A1-A2

$D=(81x^{2}-90x-25)-(25x^{2}+30x+9)$

$D=(56x^{2}-120x-34)$

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3 years ago