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27-04-2017
Mathematics

contestada

Solve, using the substitution method.

3x + 2y = 8
y = x – 6

Question 9 options:

A.(0, –6)

B.(3, –3)

C.(4, –2)

D.(14, 8)

Respuesta :

28-04-2017

3x+2y=8 y=x-6
3x+2(x-6)=8 y=4-6
3x+2x-12=8 y=-2
5x=12+8
5x=20
x=20/5
x=4 the answer is C

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