QuestionSolve the following system using the method of addition/subtraction: $$3 x+3 y=21$$ a) $$2 x-5 y=12$$

Studdy Solution
Verify the solution by substituting $x = 6.714$ and $y = 0.286$ into the second equation:
$$2(6.714) - 5(0.286) = 12$$
$$13.428 - 1.43 = 12$$
$$11.998 \approx 12$$
The solution is approximately correct, considering rounding errors. Therefore, the solution is:
$$x \approx 6.714, \, y \approx 0.286$$