Question

(50 points!) Whats 7x + 5z(x-z) ÷ 9y, when x = 5, z = 8, and y = 23. Whoever Gives me an answer AND REALLY GOOD EXPLANATION FIRST gets a free brainliest!

Answer 1

Answer: First we will substitute the numbers given for the variables.

Then we will use order of operations to simplify.

7x + 5z(x - z) ÷ 9y would be equal to

7(5) + 5(8) * (5 - 8) ÷ 9(23)

Simplify:

35 + 40(-3) ÷ 207

Use order of operations to multiply 40 and -3; the equation now looks like:

35 + (-120) ÷ 207

Use order of operations to divide -120 and 207; the equation now looks like:

35 + (-0.6)

Add 35 and -0.6:

34.4

The solution to this equation is 34.4.

Answer 2

Answer:

34.4

Step-by-step explanation:

7x + 5z(x - z) ÷ 9y

7(5) + 5(8) * (5 - 8) ÷ 9(23)

35 + 40(-3) ÷ 207

35 + (-120) ÷ 207

35 + (-0.6)

Add 35 and -0.6:

34.4

Hope this helps!