A student answered 12 problems on a test correctly and received a grade of 80% how many problems were on a test if all the probl
2 answers:
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A(x - b) - 2k = l
ax - ab - 2k = l
Subtract ax, add ab to both sides
- 2k = l - ax + ab
Divide by - 2 to isolate variable K
k = (l - ax + ab) / - 2 or
ax - ab - 2k = l
Subtract ax, add ab to both sides
- 2k = l - ax + ab
Divide by - 2 to isolate variable K
k = (l - ax + ab) / - 2 or