27-08-2015
Mathematics

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Use substitution to solve y=4x+5 2x+y=17

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27-08-2015

y=4x+5
2x+y=17
Sub in for y
2x+4x+5=17
6x+5=17
Move the same to same side
6x+5-5=17-5
6x=12
x=2

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