Question

TOLONG YA DIBANTU...
1. Tentukan himpunan penyelesaian dari persamaan linear berikut .
a. 24m = 12 c. 25 - 4y = 6y + 15
b.3z + 11 = ⁻28 d. ⁻4x - 15 = 1 - 8x

Answer 1

A. 24m =12
m = 12:24
m = 1/2

b. 3z + 11 = -28
3z = -28 - 11
3z = -39
z = -39/:3
z = -13

c. 25-4y = 6y +15
25-15 = 6y + 4y
10 = 10y
y=10:10
y =1

d. -4x -15 = 1-8x
-4x +8x = 15 +1
4x = 16
x = 16:4
x = 4

Good luck

Answer 2

No. 1
a)
24m= 12
m= 12/24
m= 1/2 atau 0,5
Hp= {1/2)

b)
3z + 11= -28
3x= -28 - 11
3z= -39
z= -39/3
z= -13
Hp= {-13}

c)
25 - 4y= 6y + 15
-4y - 6y= 15 - 25
-10y= -10
y= -10/-10
y= 1
Hp= { 1 }

d)
-4x - 15= 1 - 8x
-4x + 8x= 1 + 15
4x= 16
x= 16/4
x= 4
Hp= { 4 }

Catatan :
Hp= Himpunan Penyelesaian