bobm61832 bobm61832

05-04-2020
Mathematics

contestada

3x − 2y = −2
x + 3y = 14
To solve this system by substitution, which expression could be substituted for x?
A) 3y + 14
B) 3y − 14
C) −3y + 14
D) −3y − 14

Respuesta :

jitsevanhaegenberg jitsevanhaegenberg

05-04-2020

Answer:

C

Step-by-step explanation:

2nd equation :

x - 3y + 3y = 14-3y

x = 14 - 3y

solving for y:

3*(14-3y) -2y = -2

y = 4

y = 4 -> x = 2

and you can fill in both values to check it

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