Question
Largest angle
X + 2x -2+2x-8=180
X + 2x -2+2x-8=180
Answers
Answered by
GPT-4o mini
To find the largest angle in the equation \(X + 2x - 2 + 2x - 8 = 180\), we first need to simplify the equation:
1. Combine like terms:
\[
X + 2x + 2x - 2 - 8 = 180
\]
\[
(1x + 2x + 2x) - 10 = 180
\]
\[
5x - 10 = 180
\]
2. Next, add 10 to both sides to isolate the term with \(x\):
\[
5x - 10 + 10 = 180 + 10
\]
\[
5x = 190
\]
3. Now, divide both sides by 5 to solve for \(x\):
\[
x = \frac{190}{5}
\]
\[
x = 38
\]
Now that we have the value of \(x\), we can substitute it back into the terms to find the angles:
- The angles represented in the original equation were:
- \(X\) (which is \(x\))
- \(2x\)
- \(2x - 2\)
- \(2x - 8\)
Calculating each angle using \(x = 38\):
1. \(X = 38\)
2. \(2x = 2(38) = 76\)
3. \(2x - 2 = 76 - 2 = 74\)
4. \(2x - 8 = 76 - 8 = 68\)
Now, we have the angles:
- \(38\)
- \(76\)
- \(74\)
- \(68\)
Among these, the largest angle is:
\[
\text{Largest angle} = 76
\]
Therefore, the largest angle is **76 degrees**.
1. Combine like terms:
\[
X + 2x + 2x - 2 - 8 = 180
\]
\[
(1x + 2x + 2x) - 10 = 180
\]
\[
5x - 10 = 180
\]
2. Next, add 10 to both sides to isolate the term with \(x\):
\[
5x - 10 + 10 = 180 + 10
\]
\[
5x = 190
\]
3. Now, divide both sides by 5 to solve for \(x\):
\[
x = \frac{190}{5}
\]
\[
x = 38
\]
Now that we have the value of \(x\), we can substitute it back into the terms to find the angles:
- The angles represented in the original equation were:
- \(X\) (which is \(x\))
- \(2x\)
- \(2x - 2\)
- \(2x - 8\)
Calculating each angle using \(x = 38\):
1. \(X = 38\)
2. \(2x = 2(38) = 76\)
3. \(2x - 2 = 76 - 2 = 74\)
4. \(2x - 8 = 76 - 8 = 68\)
Now, we have the angles:
- \(38\)
- \(76\)
- \(74\)
- \(68\)
Among these, the largest angle is:
\[
\text{Largest angle} = 76
\]
Therefore, the largest angle is **76 degrees**.