20.5. I think
Your welcome if right
Sorry if wrong
3x2-8x+5
=6-8x+5
=6-3x-5x+5
=3(2-x)-5(x-1)
<h3><u>Given</u><u>:</u></h3>
line m || line n
<h3><u>To</u><u> </u><u>Find</u><u>:</u></h3>
The value of x.
<h3><u>Alternate</u><u> </u><u>Interior</u><u> Angles</u><u>:</u></h3>
The angles formed when a transversal intersects two parallel lines ( m and n ).
<h3><u>Explan</u><u>ation</u><u>:</u></h3>
6x + 10° = 5x + 28° ( Alternate Interior Angles )
By transposition method, we get
6x - 5x = 28° - 10°
By simplifying the like terms, we get
x = 18°
<h2><u>Answer</u><u>:</u></h2>
The value of x is 18°.
Answer:
6 .
4X + 2 + X = 8X +2 -3X
5X+2=5X+2
0=0
The two sides of the equation are always equal ,so 3 or any other number can be a solution for it .
7.
6X+6-3X+6= X+4
3X+12= X+4
2X= -8
X= -4
Hope it was helpful .
y=5
x=30
Explanation: since all 3 angles of triangles are marked equal we can see that it is equilateral which means 8y=40 so y=5. Then we can find that the other triangle is an 120 30 30 triangle thus x is 30. You can also do this if you can see straight away that the big triangle is a 30-60-90 triangle and just use 90-60.
