2 years ago

2x + y = 3

Mathematics

1 answer:

kaheart [24]2 years ago

5 0

9514 1404 393

Answer:

5y = 5

Step-by-step explanation:

-2(x -2y) +(2x +y) = -2(-1) +(3) . . . . -2 times [eq2] + [eq1]

-2x +4y +2x +y = 2 +3 . . . . eliminate parentheses

5y = 5 . . . . . . . . collect terms

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