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Mathematics
Trent
4 June, 06:49
3a+11=7a-13 with shown work
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Daniella Lutz
4 June, 07:46
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3a+11=7a-13
move 7a to the other side
sign changes from + 7a to - 7a
3a-7a+11 = 7a-7a-13 (combine like terms)
3a-7a+11 = - 13
-4a+11 = - 13
move 11 to the other side
sign changes from + 11 to - 11
-4a+11-11 = - 13-11
-4a = - 13-11
-4a = - 24
divide both sides by - 4 to get a by itself
-4a/-4 = - 24/-4
Answer: a = 6
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