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-7/8y=-3/7

2006-09-19 14:12:41 · 5 answers · asked by Charnelle K 1 in Education & Reference Homework Help

5 answers

Multiply both sides by a negative 8/7:

(-8/7) * -7/8y = -3/7 * (-8/7)

Reduce:

y = -3/7 * -8/7

The negatives cancel, leaving:
y = 3/7 * 8/7 = 24/49
----------------------

Always check your answer:
-7/8 * 24/49 = -3/7
-1/1 * 3/7 = -3/7
-3/7 = -3/7 <=== checks!

2006-09-19 14:24:12 · answer #1 · answered by Mitch 7 · 0 0

y = 3/7 * -8/7 = -24/49

2006-09-19 21:18:52 · answer #2 · answered by gp4rts 7 · 0 0

7 3
- ____ =- ____
8y 7

cross multiplication

-7 * 7 = -3 * 8y
-49 = -24y
-49
____ = y
-24
y = 49/24
y = 2.04

2006-09-19 21:18:03 · answer #3 · answered by edsis_sg 2 · 0 0

multiply both sides by -8/7 it will give you a horizontal line since there is no x value.

2006-09-19 21:17:59 · answer #4 · answered by who be boo? 5 · 0 0

-49y=-24
y=24/49
0.489795918673

2006-09-19 21:26:05 · answer #5 · answered by Anonymous · 0 0

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