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damaskus [11]
3 years ago
10

Solve 2 - (3x - 12) = 41

Mathematics
1 answer:
Ber [7]3 years ago
5 0

Answer:

2 −1(3−12)=41

Step-by-step explanation:

Distribute:

2−1(3−12)=41292786-1(3x-12)=412−1(3x−12)=412−3+12=41

Add the numbers:

2−3+12=41 92786{2}-3x 92786{12}=412−3x+12=4114−3=41

Rearange terms:

1=4−3=41 92786 {14-3x}=4114−3x=41−3+14=41

Subtract 14 from both sides of the equation:

−3+=14=41-3x+14=41−3x+14=41−3+14−14=41−14

Simplify:

Subtract the numers, then subtract again and get

−3=27

Your solution:

=−9

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Example 3
chubhunter [2.5K]

Answer:

We conclude that

  • The angle ∠1 = x = 36°
  • The angle ∠2 = 4x = 4(36°) = 144°

Step-by-step explanation:

Given

<1 and <2 form a linear pair

m∠1 = 4m∠2

To determine

Find the measure of each of the two angles.

<u>Important Points about linear pair:</u>

  • We know that when two lines meet or intersect, we get a linear pair of angles.
  • Linear pairs are basically two adjacent angles that form a line.
  • The measure of two adjacent angles forming a straight line is 180, meaning they are supplementary.

As

<1 and <2 form a linear pair

m∠1 = 4m∠2

In other words, angle 1 is 4 times the measure of angle ∠2.

Let the angle ∠1 be = x

As the angle 1 is 4 times the measure of angle ∠2, so

The angle 2 will be = 4x

As <1 and <2 forms a linear pair, thus the measure of the sum of <1 and <2 will be 180°, so

x + 4x = 180

5x = 180

divide both sides by 5

\frac{5x}{5}\:=\:\frac{180}{5}

\:x=36^{\circ }

Thus, we conclude that

  • The angle ∠1 = x = 36°
  • The angle ∠2 = 4x = 4(36°) = 144°
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3 years ago
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