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03-10-2018
Mathematics

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solve for the equation 4a-8=28

Respuesta :

03-10-2018

4a-8=28
add 8 to both sides to start to isolate the variable (a)
-8+8 cancels each other out
28+8=36
4a=36
to completely isolate the variable divide both sides by 4
4a÷4=a
36÷4=9
a=9

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