To evaluate a rational expression, substitute the given value for the variable/s into the expression and simplify using order of operations or PEMDAS rule.
Evaluate each of the following rational expressions for the given values.
Example 1 :
for x = 5.
Solution :
Substitute x = 5.
Use PEMDAS Rule to simplify.
Example 2 :
for x = 4.
Solution :
Substitute x = 4.
Example 3 :
for x = 3.
Solution :
Substitute x = 3.
Example 4 :
for m = 14 and p = 7.
Solution :
Substitute m = 14 and p = 7.
Example 5 :
for p = 3 and m = 9.
Solution :
Substitute p = 3 and m = 9.
Example 6 :
for a = 5 and b = 4.
Solution :
Substitute a = 5 and b = 4.
Example 7 :
for x = 5, y = 6 and z = 3.
Solution :
Substitute x = 5, y = 6 and z = 3.
Example 8 :
for a = 2 and b = 6.
Solution :
Substitute a = 2 and b = 6.
Example 9 :
for p = 4, q = ½ and r = 2.
Solution :
Substitute p = 4, q = ½ and r = 2.
Example 10 :
for p = 4, q = 2 and r = 3.
Solution :
Substitute p = 4, q = 2 and r = 3.
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