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3 votes
6u+42=-8(u-7) solve for u

User Romedius
by
5.5k points

2 Answers

3 votes
u=1
6u+42=-8u+56
6u=-8u+56-42
6u=-8u+14
6u+8u=14
14u=14
u=1
User Tim Diels
by
6.4k points
5 votes

Answer:

49

Explanation:

6u+42=8(u-7)

6u+42=8u-56

-6u -6u

-----------------

42=2u-56

+56 +56

---------------------

98=2u

----------

2

49=u

User Michael Gummelt
by
5.5k points