tentukan penyelesaian cari persamaan berikut ini

a) x + 7 = 15
x = 15 - 7
x = 8

b) 5x + 8 = 4x + 5
5x - 4x = 5 - 8
x = - 3

c) 4a + 2 = 3a - 5
4a - 3a = - 5 - 2
a = - 7

d) 8p - 14 = 5p - 2
8p - 5p = - 2 + 14
3p = 12
p = 4

e) 4 ( 1 - x ) + 3 ( x + 5 ) = 8
4 - 4x + 3x + 15 = 8
- x + 19 = 8
- x = 8 - 19
- x = - 11
x = 11

a. x + 7 = 15
    x = 15 - 7 = 8
b. 5x + 8 = 4x + 5
    5x - 4x = 5 - 8
    x = -3
c. 4a + 2 = 3a - 5
    4a - 3a = -5 - 2
    a = -7
d. 8p - 14 = 5p - 2
    8p - 5p = 14 -2
    3p = 12
    p = 4
e. 4(1 - x) + 3(x + 5) = 8
    4 - 4x + 3x + 15 = 8
    -x + 19 = 8
    -x = 8 - 19
    -x = -11
    x = 11
(maaf kalau salah)