76.7k views
0 votes
Solve each equation. Show all steps for solving using the appropriate strategies (properties of equality).

-1/8d - 4 = -3/8
-1/4m + 5 = 16
10b + (-45) = -43
-8(y - 1.25) = 4
3.2(s + 10) = 32
A) d = 6, m = -76, b = -4, y = 6, s = 1
B) d = -6, m = 76, b = 4, y = -6, s = -1
C) d = 8, m = 44, b = -2, y = 2, s = -9
D) d = -8, m = -44, b = 2, y = -2, s = 9

User Elianne
by
6.9k points

1 Answer

3 votes

Final answer:

To solve the given equations, use the properties of equality. Solve each equation step by step using appropriate strategies. The values of d, m, b, y, and s are -37, -44, 1/5, 1.5, and 0, respectively.

Step-by-step explanation:

To solve the given equations, we will use the properties of equality. Let's solve each equation step by step:

1) For the equation -1/8d - 4 = -3/8:

Add 4 to both sides: -1/8d = -3/8 + 4 = 37/8

Multiply both sides by -8: d = (37/8)(-8) = -37/1 = -37

2) For the equation -1/4m + 5 = 16:

Subtract 5 from both sides: -1/4m = 16 - 5 = 11

Multiply both sides by -4: m = (11)(-4) = -44

3) For the equation 10b + (-45) = -43:

Add 45 to both sides: 10b = -43 + 45 = 2

Divide both sides by 10: b = 2/10 = 1/5

4) For the equation -8(y - 1.25) = 4:

Divide both sides by -8: y - 1.25 = 4/-8 = -1/2

Add 1.25 to both sides: y = -1/2 + 1.25 = 3/2 = 1.5

5) For the equation 3.2(s + 10) = 32:

Divide both sides by 3.2: s + 10 = 32/3.2 = 10

Subtract 10 from both sides: s = 10 - 10 = 0

Therefore, the values of d, m, b, y, and s are:

d = -37, m = -44, b = 1/5, y = 1.5, s = 0.

User Bram Vandewalle
by
7.3k points