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Alisiya [41]
3 years ago
7

16= -5+z/4 a. 69 b. -1 c. 9 d. 59

Mathematics
2 answers:
OverLord2011 [107]3 years ago
7 0
16 = \frac{-5+z}{4}

Multiply both sides by 4

16\times 4 = \frac{-5+z}{4} \times 4

64 = -5+z

Rearrange the terms

64 = z - 5

Add 5 on both sides.

64 + 5 = z - 5 + 5

\boxed{\bf{z = 69}}


Your final answer is a. 69.
vlada-n [284]3 years ago
6 0
If you would like to solve the equation 16 = (- 5 + z) / 4, you can do this using the following steps:

16 = (- 5 + z) / 4       /*4
16 * 4 = - 5 + z
16 * 4 + 5 = z
 z = 69

The correct result would be a. 69.
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Easiest way is if you substitute each point (x,y) into each set of equations and both points work for both equations in the system of equations, then it is the correct answer

Otherwise substitute one equation for y in the other equation:
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