Algebra Math Help

Algebra plz help?

I am having problems with some word problems if anyone can help that would be great! I need to resolve the problem, establish a legend, a chart, and identify the formula. Could you please show your work thanks. The question is: Kahlil test average after of the first three tests was 82. His score in the second test was 3 points lower than the first and third test score was 12 points higher than the first. What are the results of the 3 tests?

x = y = z first test second test = test-thirds of the average 82 = So (x + y + z) / 3 = 82 (x + y + z) = 246 second test 3 less than first if y = x 3-levels above 12 the first test for z = x 12 connect the other values Y and Z (x + y + z) = 246 (x + x + x- 3 +12) = 246 (3x-3 +12) = 246 (3x 9) 246 3x = 237 x 79 = 79 socket Y and Z to obtain the equations y = 76 z = 91

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