tolong dibantu dengan caranya. (2x + 3)=5 hasilnya berapa

Bab : Nilai Mutlak

Tanda seharusnya I x I

I2x + 3I = 5
2x + 3 = 5 atau -5

Jika +5 :
2x + 3 = 5
2x = 5 - 3
2x = 2
x = 1

Jika -5 :
2x + 3 = -5
2x = -5 - 3
2x = -8
x = -4

Hp = { -4 , 1 }

Semoga membantu ... semangat ^_^

( 2x + 3 ) = 5
2x + 3 = 5
2x = 5 - 3
2x = 2
x = 2/2
x = 1