Question

Jawablah soal2 ini
a. solusi dari 8y + 4 = 6y - 2 ...
b. solusi dari 3 ( 4y - 4 ) = 5 (2y + 9)

Answer 1

A. 8y + 4 = 6y - 2
8y - 6y = -2 - 4
2y = -6
y = -6/2
y = -3
b . 3 (4y - 4 ) = 5 (2y + 9 )
12y - 12 = 10y + 45
12y - 10y = 45 + 12
2y = 57
y = 281/2

Answer 2

A. 8y + 4 = 6y - 2

8y + 4 = 6y - 2
8y - 6y = - 2 - 4
2y = -6
y = -6 ÷ 2
y = -3


b. 3 (4y - 4) = 5 (2y + 9)

3 (4y - 4) = 5 (2y + 9)
12y - 12 = 10y + 45
12y - 10y = 45 + 12
2y = 57
y = 57 ÷ 2
y = 28,5