IDNStudy.com, ang iyong mapagkukunan para sa malinaw at maaasahang mga sagot. Hanapin ang mga solusyong kailangan mo nang mabilis at madali sa tulong ng aming mga eksperto.

using the properties of equality , how can you prove that if 2x+1=4 then x=3/2 ..pls kindly help me to solve this.. :(( 

Sagot :

2x+1=4 then x=3/2
transpose 1 sooo ..... 2x= 4-1 , then 2x=3 ... and divide both side from to 2 to remove the to from x. so 2x/2 = 3/2 ..  answer is ... x = 3/2  then x = 3/2
2x + 1 = 4

2x + 1 -1 = 4 -1          ––> Addition property of equality, we added -1 to both sides

2x = 3

2x = 3              ––> Multiplication property of equality, we multiplied 1/2 to both sides
2     2

x = 3/2