Question

Tentukan penyelesaian dari persamaan2 berikut ini: A.4×-3=3×+5 B.3×+13=5-× C.12+3a=5+2a D.4(3-2y)=15-7y

Answer 1

A. 4x - 3 = 3x + 5
4x - 3x = 5 - 3
x = 2

b. 3x + 13 = 5 - x
3x + x = 5 - 13
4x = -8
x = -2

c. 12 + 3a = 5 + 2a
3a - 2a = 5 - 12
a = -7

d. 4(3-2y) = 15-7y
12-8y = 15-7y
-8y+7y = 15-12
-y = 3
y = -3