Hello there, this problem is just basic addition, here is what it would look like
Solve it and we get 78.21
Answer:
Size
Step-by-step explanation:
Just got the answer out
Answer:
x = 21
Step-by-step explanation:
The sum the the interior angles of a triangle is 180°.
We know that the three angles of the triangle is 100°, x° - 4, and 3x°.
The sum of 100°, x° - 4, and 3x° must equal 180°. We can turn this into the equation:
100 + x - 4 + 3x = 180
(I got rid of the degree signs because they are not necessary when finding x.)
Now, to find the value of x, we would have to solve for x in the equation 100 + x - 4 + 3x = 180.
100 + x - 4 + 3x = 180
Subtract 100 from both sides to get rid of the 100 on the left side.
x - 4 + 3x = 180 - 100
Simplify.
x - 4 + 3x = 80
Add 4 from both sides to get rid of the -4 on the left side.
x + 3x = 80 + 4
Simplify and combine like terms.
4x = 84
Divide 4 from both sides to get rid of the coefficient of 4 on the left side.
x = 84/4
Simply.
x = 21
The value of x would be 21.
x = 21
I hope you find this helpful. :)
Answer:
<u>Set a system of equations:</u>
<u>Multiply the whole upper equation by 2 and the whole bottom equation by 1 so their x-value equals:</u>
<u>Subtract the upper equation by the bottom equation & solve for y:</u>
<u>Substitute in the y-value to a equation to find x:</u>
<u>Therefore, the answer would be:</u>
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