Question

19 - 3(2x - 1)=7
please help me solve this

Answer 1

19 - 3(2x - 1)=7
-3(2x-1)=7-19
-3(2x-1)=-12
2x-1=4
2x=5
x=5/2

Answer 2

Solving brackets
19 - 3(2x - 1)=7
Brackets cannot be solved.
doing multiply or divide.
19 - 6x -(-3)=7
19 - 6x +3=7
adding or subtracting what ever needs to be done.
22-6x=7
adding 6x on both sides
22-6x+6x=7+6x
22=7+6x
subtracting 7 on both sides
22-7=7+6x-7
15=6x

6x=15
divide both sides by 6
\[\frac{ 6x }{ 6 } = \frac{ 15 }{ 6}\]
\[x = \frac{ 15 }{ 6 }\]
\[x= \frac{ 5 }{ 2 }\] Cant write in improper fraction.
converting into decimals x=2.5