penyelesaian dari persamaan persamaan berikut a. 3(2x + 7 ) = 5(x-4) b. 8(¾y + ¾ ) = 5(y + 4/5) c. 7(2x+3)-5y =6+4(2y+7)

a. 3(2x + 7) = 5(x-4)
6x+21 = 5x-20
6x-5x = -20-21
x = -41

b. 8(3/4y + 3/4) = 5(y + 4/5)
24/4Y + 24/4 = 5y + 20/5
6y + 6 = 5y + 4
6y-5y = 4-6
y = -2

c. 7(2x+3)-5y = 6+4(2y+7)
14x+21-5y = 6+8y+28
14x-5y-8y+21-6-28=0
14x-13y=31



maaf kalo salah yh_-