HW - Mathpower 8 p396 #7-10, #19-22, #25-32
The
Balance Method
A way of
solving algebraic equations by doing the same thing to both sides of the
equation.
3x= 15
Divide both sides by 3
3x =15
3 3
x= 5
7y-3=18
Add 3 to both sides
7y-3+3=18+3
Divide both sides by 7
7y = 21
7 7
y =3
