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3 years ago

Solve the equation 7x-3(x-6)=30

Mathematics

2 answers:

Alinara [238K]3 years ago

8 0

Answer:

x=3

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

7x−3(x−6)=30

7x+(−3)(x)+(−3)(−6)=30(Distribute)

7x+−3x+18=30

(7x+−3x)+(18)=30(Combine Like Terms)

4x+18=30

Step 2: Subtract 18 from both sides.

4x+18−18=30−18

4x=12

Step 3: Divide both sides by 4.

4 divided by 12 =3

4 divided 4 = 1

x=3

garri49 [273]3 years ago

7 0

Answer:

The answer is x = 3

Step-by-step explanation:

7x - 3(x-6) =30

7x -3x+18=30

4x= 30-18

4x=12

x=12/4

x=3

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Solution:

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$$=6 \pi$ cm

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$=6 (\pi + 2\sqrt 2)$ cm

Hence area of the shaded region $$=36(\pi -2)$ square cm

Perimeter of the shaded region $=6 (\pi + 2\sqrt 2)$ cm

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