iitzniyah iitzniyah

13-02-2021
Mathematics

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Solve the following system of equations using the substitution method.
The problem- y= -2x+11
3x + y = 18

Respuesta :

clarch19 clarch19

13-02-2021

Answer:

x = 7

y = -3

Step-by-step explanation:

the first equation is already solved for 'y' so we can substitute '-2x+11' for 'y' in second equation

3x + (-2x + 11) = 18

x + 11 = 18

x = 7

solve for 'y'

y = -2(7) + 11

y = -14 + 11

y = -3

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