Given: x = 7, y = 4. Evaluate the following expressions:
12 + x = 12 + 7 = 19
12 + x matches with 19
3x + y = 3*7 + 4 = 21 + 4 = 25
3x + y matches with 25
4y - 10 = 4*4 - 10 = 16 - 10 = 6
4y - 10 matches with 6
[tex]\frac{1}{2}xy=\frac{1}{2}*7*4=14[/tex]
The last expression matches with 14
