Question

Bantulah saya mengerjakan tugas rumah ! (dengan segera) (lengkap dengan caranya)

Answer 1

Verified answer

1a) k + 7 = 12
k = 12 - 7 = 5
k + 11 = 16
k = 16 - 11 = 5
c) - 5 + y = 14
y = 14 + 5 = 19
y = 19
d) 4 + m = 11
m = 11 - 4 = 7
- 2 + m = 5
m = 5 + 2 = 7
h) 3r = 2r + 5
3r - 2r = 5
r = 5
5r = 5
r = 1

2a) x + 5 = 8
x = 8 - 5 = 3
b) y - 9 = 3
y = 3 + 9 = 12
c) 9 + z = 4
z = 4 - 9 = - 5
d) 2p + 4 = 14
2p = 14 - 4
2p = 10
p = 5
e) 9a - 5 = 8a + 6
9a - 8a = 6 + 5
a = 11
f) b - 17 = 4b - 5
b - 4b = 17 - 5
- 3b = 12
b = - 4
g) 2c = c + 3
2c - c = 3
c = 3
h) 7 + d = 2d - 1
d - 2d = - 1 - 7
- d = - 8
d = 8

3b) b = 5
4b = 20
b = 5
c) - ¼c = 7
c = 7 × (-4)
c = - 28
c = - 28
d) 7d = 28
d = 4
d = 4
f) 7x = 28
x = 4
x = 4
g) 3/5 z = 6
z = 6 × 5 ÷ 3
z = 10
z = 10
h) 1/5 q = 6
q = 6 × 5
q = 30
q = 30

4a) 2k = 8
k = 4
b) 3n = 9
n = 3
c) ⅓ m = 4
m = 12
d) 3/5 p = 7
p = 35/3
e) 9x = 3
x = 3/9 = ⅓
f) 16 = 4y
y = 4
g) 9 = 3/5 z
z = 45/3
h) 7 = 2d
d = 7/2