GeekyElement GeekyElement

03-12-2017
Mathematics

contestada

Solve the system of linear equations by substitution. Check your solution.

4x + 2y = 8
6x - 4y = 5

Respuesta :

lesliekolleroxrkcf lesliekolleroxrkcf

03-12-2017

8x+4y=16
6x-4y=5
_________
14x. =21
x = 3/2
4*(3/2)+2y=8
6+2y=8
2y=2
y=1

4*(3/2)+2*1=8 check
6(3/2)-4*1=5 check

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