How do you solve for d?

Question

16d - (4 - 5d) = -67
How do you solve for m?
2/7(4m - 18) = 12
How do you solve for b?
1/4(5b + 11) = 19
How do you solve for x?
-5/6(9 + 2x) = 40

Answer 1

16d - (4 - 5d) = -67

16d + 5d = -67 + 4

21d = -63

d = -3

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2/7(4m - 18) = 12

8m - 36 = 84

8m = 120

m = 15
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Now that I've shown you how to do these, you can do the other two. I'll be glad to check your answers.