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26-08-2020
Mathematics

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Use back substitution to solve this problem

Use back substitution to solve this problem class=

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KurdishPotato KurdishPotato

26-08-2020

Answer:

z = -5

y = 1

x = 4

Step-by-step explanation:

2z = -10 ➡ z = -5

4y -(-5) = 9 ➡ 4y = 4 and y = 1

2x + 3 + (-5) = 6 ➡ 2x = 8 and x = 4

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