Question

Selesaikan persamaan linear tersebut
a) 2 - 2/3x = 4
b) 3/4 (x + 3) + 1/2 (x - 1 = 0)
c) 2x/3 + -3/3 + 4x/2 + 4/2 = 2× + 3
dengan cara ya

Answer 1

A) 2 - 2/3x = 4
4 - 2 = - 2/3x
2 = - 2/3x
x = 2 / - 2/3
x = 2 * -3/2
x = -3

b) 3/4x + 9/4 = 1/2x - 1/2 = 0
____________________________ × 8
6x + 18 = 4x - 4
6x - 4x = -4 - 18
2x = -22
x = -11

c) 2x / 3 - 1 + 4x / 2 + 2 = 2x + 3
4x / 6 - 1 + 12x / 6 + 2 = 2x + 3
______________________________ × 6
4x - 6 + 12x + 12 = 12x + 18
16x + 6 = 12x + 18
16x - 12x = 18 - 6
4x = 12
x = 3