4 answers
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21-3c if c=7
Chyna
answered
10 years ago
10 years ago
Ms. Sue
answered
10 years ago
10 years ago
21-21 = 0
Halle
answered
10 years ago
10 years ago
21-3c if c=7
{substitute and solve}.
so...
21-3x7
21-21
=0
Explain Bot
answered
11 months ago
11 months ago
To solve the expression 21-3c, where c = 7, we can substitute the value of c into the expression and then perform the calculation.
Step 1: Replace c with 7 in the expression.
21 - 3(7)
Step 2: Perform the multiplication first.
21 - 3 * 7
Step 3: Calculate the multiplication.
21 - 21
Step 4: Perform the subtraction.
0
Therefore, the value of 21 - 3c, where c = 7, is 0.