SOLUTION: Please will someone help me with these? I appreciate it. solve: 8x + 9 = 25 4x + 10 = 30 Solve using the principles together -8x - 24 = -29 1/3 3x + 10x + 91 3x - 18

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Question 132934: Please will someone help me with these? I appreciate it.
solve:
8x + 9 = 25
4x + 10 = 30
Solve using the principles together
-8x - 24 = -29 1/3
3x + 10x + 91
3x - 18 = 9

Answer by josmiceli(19441)   (Show Source): You can put this solution on YOUR website!
As long as you do the exact same thing to both
sides of an equation, the equation is still true
8x + 9 = 25
4x + 10 = 30
Solve using the principles together
-8x - 24 = -29 1/3
3x + 10x + 91
3x - 18 = 9
-----------------

Subtract from both sides


Divide both sides by
answer
----------------

Subtract from both sides


Divide both sides by
answer
----------------

First, what is 29 1/3? How many 1/3's are there in 29?
The answer is 1/3's. Add 87 1/3's and
1/3 to get 88 1/3's. So, the equation becomes

Now multiply both sides by

Multiply both sides by

Subtract from both sides

Divide both sides by

Now multiply the right side by which is
actually and multiplying by does not change
anything

answer
check the answer:




multiply both sides by


You can, and should check all of your answers like this,
unless you don't have time, like during a test.
That's all I have time for, good luck.

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