Solving
an equation means finding a value of a variable that make the equation true.
This value is called the solution of the equation. A mathematical equation is
just like a balanced equation. Both sides of the equation should be equal at
all times. Whatever we do to one side, has to be done on the opposite side.
[tex]-3(-4y+3) +7y[/tex]
[tex]
12y-9+7y
[/tex] [tex]Expand [/tex]
[tex](12y+7y)-9[/tex] [tex]Gather \ like \ terms [/tex]
[tex]
19y-9
[/tex]
