suzzie910 suzzie910

31-08-2018
Mathematics

contestada

28 + 2A = 5A + 7

Please explain thank you!

Respuesta :

toasty23 toasty23

31-08-2018

First you need to get x on one side of the equation and to do that subtract 2a from both sides.
28 + 2a = 5a + 7
-2a -2a
28=3a+7

Then we need to get a alone by subtracting 7 on both sides.
28=3a+7
-7 -7
21=3a

Finally divide each side by 3 and you should get a = 7. Hope this helps!

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