Question

3)21 = m + 6 4) 4 = x − 9

4) 4) 4 = x − 9

5) b − 17 = −16 6) −4 = x − 17

Plz help

Answer 1

[A] m = 15

[B] x = 13

[C] b = 1

[D] x = 13

Step-by-step explanation:

• 21 = m + 6

Switch sides:

m + 6 = 21

Subtract 6 from both sides:

m + 6 - 6 = 21 - 6

Simplify:

m = 15

• 4 = x − 9

Switch sides

x - 9 = 4

Add 9 to each side:

x - 9 + 9 = 4 + 9

Simplify:

x = 13

• b − 17 = −16

Add 17 to each side:

b - 17 + 17 = -16 + 17

Simplify:

b = 1

• −4 = x − 17

Switch sides:

x - 17 = -4

Add 17 to each side:

x - 17 + 17 = -4 + 17

Simplify:

x = 13

- PNW