Abid3127
solving linear equation
-7/8=-5/6z
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geerky42
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Divide both sides by -5/6 to isolate z.
Abid3127
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i tried but i got way different answer then book
geerky42
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Can you show me your work?
Abid3127
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-0.875*0.833=z
0.729=z
geerky42
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Let me show you.
\[-\dfrac{7}{8} = -\dfrac{5}{6}z\]Divide both sides by \(-\dfrac{5}{6}\).
\[\dfrac{-\dfrac{7}{8}}{-\dfrac{5}{6}} = \dfrac{-\dfrac{5}{6}z}{-\dfrac{5}{6}}\]
\[\dfrac{-\dfrac{7}{8}}{-\dfrac{5}{6}} = z\]
Is this clear?
Abid3127
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but how the answer is 21/20
Abid3127
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now i got it -7/8*6/5=z
z=42/40
or 21/20
geerky42
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Glad you got it.
Abid3127
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thanks greeky42
geerky42
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You're welcome.