Question

Rentuka penyelesaian dari persamaan berikut!!
a.8 - 2x = 4
b.2x -5 = x + 3
c.3y - 8 = 16
d.9 - 6y = 3
e.1seper2y + 6 = 5seper2y - 30

Answer 1

A. 8-2x=4
   8-4 = 2x
   x = 4/2 = 2
b. 2x-5 = x + 3
   2x - x = 3 + 5
   x = 8
c. 3y -8 = 16
   3y = 16 + 8
   y = 24/3 = 8
d. 9 - 6y = 3
   9 -3 = 6y
   6 = 6y
   y = 1
e. 1/2y + 6 = 5/2y - 30
   1/2 y - 5/2y = -30 - 6
     -4/2y = -36
       y = 36/4/2 = 36 . 2/4 = 18

Answer 2

A. 8-2x = 4
-2x = 4-8
-2x = -4
x = -4/-2
x = 2

b. 2x -5 = x + 3
2x-x = 3+5
x = 8

c. 3y - 8 = 16
3y = 16 + 8
3y = 24
y = 24/3
y = 8

d. 9 - 6y = 3
-6y = 3-9
-6y = -6
y = -6/-6
y = 1

e. 1seper2y + 6 = 5seper2y - 30
1 per 2 y - 5 per 2 y = -30-6
-4 per 2 y = -36
y = -36 / -4per2
y = -36 kali 2per -4
y = 18