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Solve the following system of equations if

 

(2x + 3y - 4z) = 19 (1)
(-y + 6z) = 23 (2)

 

Calculate 10x + 10y + 10z.
 

 Feb 1, 2022
 #1
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Add (1) + (2) (both equations) together and you get 2x + 2y + 2z = 42 (3).
Multiply the equation (3) by 5 and you get 10x + 10y + 10z = 42 * 5 = ............... (diy).

 Feb 1, 2022
 #2
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210?

 Feb 1, 2022

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