4x - y - 3x = 40 5x + 2y + z = 25  6x + y + 2z =18  Use the Substitution method or elimination method to solve the system of equation. It needs to see what needs to be done to both side of an equation to get the next equation.

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A: Use of concept of similar triangles is used 

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Q: 4 2 -8 -6 -4 -2 2 4 6 8 10 -2 4

A: We have to find the  domain of the function given by the graph.

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A: topic - average rate of change of function

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Q: 1. If f(x) = x + 5 and g(x) = x – 5, (a) f(g(x)) = (b) g(f(x)) (c) Thus g(x) is called an function o...

A: Note: According to our answering guidelines we have to solve only one question (if multiple question...