Posted by Adriana on Saturday, October 11, 2008 at 5:33pm.
I need help on how to solve equations with variables on both sides.
1. 30=8 - 2x
2. 98 - 4b= -11b
3. 3p - 8= 13 - 4p
4. 9 - 2y/7 = y
5. 1/3(12 - 6x) = 4 - 2x
- Math - drwls, Saturday, October 11, 2008 at 5:39pm
Add, subtract, multiply or divide both sides of the equation by the same amount unitl you get only the variable you want on one side. That is all there is to it.
30 = 8 - 2x
22 = -2x
-22 = 2x
x = -11
You should be able to do the others yourself
- Math - Ms. Sue, Saturday, October 11, 2008 at 6:11pm
3p - 8= 13 - 4p
You would first add 8 to both sides of the equation.
3p = 21 - 4p
Then add 4p to both sides.
7p = 21
p = ?
- Math - Ms. Sue, Saturday, October 11, 2008 at 6:22pm
Great! You're welcome. :-)
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