2 = (10+z)/-3 ???

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Please show me how to work out the following problem:

2 = (10 + z)/ -3

/ = divided by

2007-01-11 12:38:21 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics

-6 = 10 +z
-16 = z

2007-01-11 12:42:30 · answer #1 · answered by BigPappa 5 · 0⤊ 0⤋

2 = (10 + z)/ -3 (=)

-3*2 = (10 + z)(=)

-6-10 = z (=)

z = -16

2007-01-11 20:43:31 · answer #2 · answered by belalondres 1 · 0⤊ 0⤋

2 = (10+z)/-3 cross multiply
-6 = 10+z isolate z
-6+-10 = z
-16=z

Check: Does 2=(10+(-16))/-3 ?

2=(-6)/-3
2=2

2007-01-11 20:45:07 · answer #3 · answered by crane 1 · 0⤊ 0⤋

2 = (10 + z)/ -3 multiply both sides by -3
-6=10+z subtract 10 grom each side
z=-16

2007-01-11 20:43:38 · answer #4 · answered by yupchagee 7 · 0⤊ 0⤋