Question

Simplify the following if x = 2 & y = 5:

1. 3x + y =

2. 3x + 2y =

3. 3y + 2x =

4. 10x + 4y + 7x =

5. 8y + 5x =

6. 7x + 4y =

Answer 1

1. 11 ( (3x2) + 5)

2. 16 ( (3x2) + (2x5) )

3. 19 ( (3x5) + (2x2) )

4. 54 ( ( 10x2) + (4x5) + (7x2) )

5. 50 ( (8x5) + (5x2) )

6. 34 ( (7x5) + (4x5) )

Hope I got all them correct!