Solve using addition - x - y =4, x + 2y =4

For this case we have a system of two equations with two unknowns, given by the variables x and y respectively. To solve we follow the steps below:

1st step:

We eliminate a variable, for this we add both equations

Step 2:

We substitute the value of "y" in any of the equations and clear x:

Thus, the values of the variables are given by:

the answer is vanilla

step-by-step explanation:

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