How do you solve #2z + 9.75 - 7z = -5.15#?

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Answer 1 · 2015-03-25T15:50:00

Collect #z# on one side and numbers on the other:
#2z-7z=-9.75-5.15#
#-5z=-14.9#
divide both sides by #-5#;
#z=-14.9/-5=2.98#