Create an equivalent system of equations using the sum of the system and the first equation
-3x + y = 12
x + 3y = 6
a.-3x + y = 12
- 2x + 4y = 18
b.-3x+y=12
-3x + 4y = 18
c -3x+y = 12
x + 4y = 18
d.-3x+y=12
-2x + 4y = 6

Using the equation of the sum of the system of equations and the first equation of the system, the equivalent system of equations is:

-3x + y = 12

-2x + 4y = 18

(Option A)

Given the system of equations:

Add Eqn. 1 and Eqn. 2 together:

-3x + y = 12

x + 3y = 6 (ADD)

-2x + 4y = 18

Therefore, using the equation of the sum of the system of equations and the first equation of the system, the equivalent system of equations is:

-3x + y = 12

-2x + 4y = 18

(Option A)

Learn more about equivalent system of equations on:

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Step-by-step explanation:

if the pizza is divided equally into 2 equal halves then you would get

πr^2/2

where r is the radius of the pizza.

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answer: group b.

step-by-step explanation: