martinez31607 martinez31607

08-12-2021
Mathematics

contestada

NO LINKS AND NO WEBSITES I really need help with this, and also if it's Substitution or linear combination.

x = -2
3x + y = 8

Respuesta :

arianasaechao12 arianasaechao12

08-12-2021

Step: Solve x = −2 for x:

x = −2

Step: Substitute −2 for x in 3x + y = 8:

3x+y=8

(3)(−2)+y=8

y−6=8(Simplify both sides of the equation)

y−6=8 (Add 6 to both sides)
+6 +6

y = 14

Answer:
x = −2
and
y = 14

Answer Link

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