Answer:
1.) x = 38°
y = (360° - (38+38)) ÷ 2
= (360° - 76) ÷ 2
= 284 ÷ 2
= 142°
2) x = 40°
y = 23°
3.) 2(2x+10) + 2(5x-5) = 360°
4x+20 + 10x-10 = 360°
14x+10 = 360°
14x = 350°
x = 25
y = (2x+10)°
= (2(25)+10)°
= (50+10)°
= 60°
4.) 3x-25 = 2x+4
3x-2x = 25+4
x = 29
2y-3 = y+5
2y-y = 3+5
y = 8
5.) 4x-2+3x = 3y-3+3y-1
7x-2 = 6y-2
7x = 6y
x = 6y/7
y = 7x/6
x and y = 0
6.) 3x-17 = 2x+24
3x-2x = 24+17
x = 41
5y-6 = y+58
5y-y = 58+6
4y = 64
y = 16
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Verified answer
Answer:
1.) x = 38°
y = (360° - (38+38)) ÷ 2
= (360° - 76) ÷ 2
= 284 ÷ 2
= 142°
2) x = 40°
y = 23°
3.) 2(2x+10) + 2(5x-5) = 360°
4x+20 + 10x-10 = 360°
14x+10 = 360°
14x = 350°
x = 25
y = (2x+10)°
= (2(25)+10)°
= (50+10)°
= 60°
4.) 3x-25 = 2x+4
3x-2x = 25+4
x = 29
2y-3 = y+5
2y-y = 3+5
y = 8
5.) 4x-2+3x = 3y-3+3y-1
7x-2 = 6y-2
7x = 6y
x = 6y/7
y = 7x/6
x and y = 0
6.) 3x-17 = 2x+24
3x-2x = 24+17
x = 41
5y-6 = y+58
5y-y = 58+6
4y = 64
y = 16