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Aliun [14]
3 years ago
9

-1/3+2z=-5/6 what does z equal? -2/3x+3/7=1/2 what does x equal?

Mathematics
2 answers:
Lubov Fominskaja [6]3 years ago
8 0
-1/3+2z=5/6 2z=5/6+1/3 z=7/6(1/2) Z=7/12 -2/3x+3/7=1/2 -2/3x=1/2-3/7 x=1/14(-3/2) X=-3/28
inessss [21]3 years ago
3 0
- \frac{1}{3} + 3z = - \frac{5}{6} \\ \\ 2z -  \frac{1}{3} = - \frac{5}{6} \\ \\ 2z = - \frac{5}{6} +  \frac{1}{3} \\ \\ 2z = - \frac{1}{2} \\ \\  = - \frac{1}{2 \times 2} \\ \\ z = - \frac{1}{4} \\ \\

The final result is: z = - 1/4 or z = -0.25.

----------


- \frac{2}{3} x +  \frac{3}{7} =  \frac{1}{2} \\ \\ - \frac{2x}{3} +  \frac{3}{7} =  \frac{1}{2} - \frac{2x}{3} =  \frac{1}{2} -  \frac{3}{7} \\ \\ - \frac{2x}{3} =  \frac{1}{14} \\ \\ -2x =  \frac{1}{14} \times 3 \\ \\ x =  \frac{3}{14 \times -2} \\ \\ x = - \frac{3}{28} \\ \\

The final result is: x = - 3/28 or x = -0.1071.
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