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### Grade 7 - Mathematics2.15 Value of an Expression - II

 Example: Find the value of an expression (1/3)x + 2/3 when x=3. Solution: Substituting the value of x in the given equation, 1/3 * 3 + 2/3 = 1 + 2/3 The LCM is 3 so that(3+2)/3 = 5/3. the value of the given equation when x=3 is 5/3. Directions: Solve the following problems and show your work. Also write at least ten examples of your own.
 Q 1: Find the value of an expression (4/3)x - 5/2 when x=3.Answer: Q 2: Find the value of an expression (13/6)x + 5/3 when x=2.Answer: Q 3: Find the value of an expression (5/6)x + 7/8 when x=0.Answer: Q 4: Find the value of an expression (7/8)x + 5/2 when x=4.Answer: Q 5: Find the value of an expression (7/6)x + 5/2 when x=3.Answer: Q 6: Find the value of an expression (21/8)x - 20/9 when x=1.Answer: Question 7: This question is available to subscribers only! Question 8: This question is available to subscribers only!