Question

Using substitution and order of operations, evaluate the expression below. Fill in the blank with your simplified, integer solution. 3x+2y−5z, where x=4,y=7,z=2

a) 7
b) 11
c) 13
d) 19

Answer 1

After substituting x=4, y=7, and z=2 into the expression 3x+2y−5z and simplifying, we find that the expression equals 16, which is not listed in the provided options.

Step-by-step explanation:

To evaluate the expression 3x+2y−5z, where x=4, y=7, and z=2, using substitution and order of operations, perform the following steps:

1. Substitute the given values into the expression: 3(4)+2(7)−5(2)
2. Multiply the numbers: 12 + 14 - 10
3. Add and subtract the results in order: (12 + 14) - 10 is 26 - 10
4. Finish by subtracting: 26 - 10 equals 16

So, the simplified integer solution is 16, which is not one of the provided options.