Answer:
1. 100 - 12y = 16
2. b * (15 + 37) = 156
3. 27 + 12z = 87
4. 135/(5c) = 3
5. w^2 * (12/4) = 300
6. 12d / (25-19) = 4
7. 5x + 13 = 68
Explanation:
1.
The product of y and 12 is "12y", so the difference of 100 and this product is "100 - 12y". The value of y is 7, so we have:
100 - 12*7 = 100 - 84 = 16
2.
The sum of 15 and 37 is "15 + 37", and b times this sum is "b * (15 + 37)"
b is equal to 3, so we have:
3 * (15 + 37) = 3 * 52 = 156
3.
The product of z and 12 is "12z", so 27 added to this product is "27 + 12z". The value of z is 5, so we have:
27 + 12*5 = 27 + 60 = 87
4.
The product of c and 5 is "5c", so 135 divided by this product is "135/(5c)". The value of c is 9, so we have:
135/(5*9) = 135 / 45 = 3
5.
The quotient of 12 and 4 is "12/4", so w to the second power times this quotient is "w^2 * (12/4)"
The value of w is 10, so we have:
10^2 * (12/4) = 100 * 3 = 300
6.
The difference of 25 and 19 is "25 - 19", so 12 times d divided by this difference is "12 * d / (25-19)"
The value of d is 2, so we have:
12 * 2 / (25-19) = 24 / 6 = 4
7.
The product of x and 5 is "5x", so this product added to 13 is "5x + 13"
The value of x is 11, so we have:
5*11 + 13 = 55 + 13 = 68