Answer:
<h2>40°</h2>
Step-by-step explanation:
We have parallel lines.
Angles 1 and 2 are alternate angles.
With parallel lines, alternate angles are congruent.
Therefore
![m\angle1=m\angle2](https://tex.z-dn.net/?f=m%5Cangle1%3Dm%5Cangle2)
![m\angle1=2x+20,\ m\angle2=3x+10\\\\2x+20=3x+10\qquad\text{subtract 20 from both sides}\\\\2x+20-20=3x+10-20\\\\2x=3x-10\qquad\text{subtract}\ 3x\ \text{from both sides}\\\\2x-3x=3x-3x-10\\\\-x=-10\qquad\text{change the signs}\\\\x=10\\\\m\angle1=2(10)+20=20+20=40](https://tex.z-dn.net/?f=m%5Cangle1%3D2x%2B20%2C%5C%20m%5Cangle2%3D3x%2B10%5C%5C%5C%5C2x%2B20%3D3x%2B10%5Cqquad%5Ctext%7Bsubtract%2020%20from%20both%20sides%7D%5C%5C%5C%5C2x%2B20-20%3D3x%2B10-20%5C%5C%5C%5C2x%3D3x-10%5Cqquad%5Ctext%7Bsubtract%7D%5C%203x%5C%20%5Ctext%7Bfrom%20both%20sides%7D%5C%5C%5C%5C2x-3x%3D3x-3x-10%5C%5C%5C%5C-x%3D-10%5Cqquad%5Ctext%7Bchange%20the%20signs%7D%5C%5C%5C%5Cx%3D10%5C%5C%5C%5Cm%5Cangle1%3D2%2810%29%2B20%3D20%2B20%3D40)
Answer:
U it is DG if jug chuchi DG u want u back to the u and composition
Answer:
Infinite
Step-by-step explanation:
3(4x + 1) - 2
= 12x + 3 - 2 (Multiply the sum in the bracket by 3)
= 12x + 1 (Simplify)
This means that:
12x + 1 = 3(4x + 1) - 2
is the same as
12x + 1 = 12x + 1
Hence, anything that is used to substitute x is correct.