Respuesta :

Baemax20
14.  x=74 y=127 This is right for sure.
# 7.

7x +13 = 8x - 8
8x - 7x =  13 + 8
x = 21

7x +13 = 7(21) + 13 = 160

160+160 = 320
360 - 32 = 40

so A = C = 20

answer. 20 (third choice)

# 8.

AB = CD
3x+2 = 4x-3
4x-3x = 2+3
x = 5

AB = 3x+2 = 3(5) + 2 = 17

answer"  17 (third choice)

# 13.

BE = ED
3x + 1 = 5x - 9
5x - 3x = 1 + 9
2x = 10
x =5

answer : 5 (third choice)

#14

x = 53,  y = 106 (second choice)