A Web music store offers two versions of a popular song. The size of the standard version is
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1. c - 7 = 32
To solve this problem, add the difference and the subtrahend of the given equation.
Checking:
To check, simply substitute the conclusion on the unknown quantity.
39 (c) - 7 = 32
Thus, the equation was correct which gives us the answer that:
2. r + 4 = 39
To solve this problem, subtract the sum and the addend of the given equation.
Checking:
To check, simply substitute the conclusion on the unknown quantity.
35 (r) + 4 = 39
Thus, the equation was correct which gives us the answer that: