Question

PLEASE SOLVE FOR VARIABLE 1. 18 = -6/7h 2. -3/4x = 21/8x 3. -1/2z = 5/12

Answer 1

Answer:

1. -212. 03. -5/6

Step-by-step explanation:

Answer 2

Answer:

1. -21

2. 0

3. $-\frac{5}{6}$

Step-by-step explanation:

1. 18 = $-\frac{6}{7} h$

multiply both sides by the reciprocal of -6/7.

$(-\frac{7}{6} )$18 = $-\frac{6}{7} h$$(-\frac{7}{6} )$

-21 = h

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2. $-\frac{3}{4} x=\frac{21}{8} x$

find the LCM of both fractions.

LCM = 8

multiply both fractions by the LCM

$-\frac{3}{4} x(8)=\frac{21}{8} x(8)$

-6x = 21x

subtract 21x from both sides

-6x-21x = 21x-21x

-27x = 0

isolate x

-27x/-27 = 0

x = 0

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3. $-\frac{1}{2} z=\frac{5}{12}$

multiply both sides by the reciprocal of -1/2.

$-\frac{1}{2} z(-2)=\frac{5}{12}(-2)$

z = $-\frac{5}{6}$

hope this helps :)