Question

Solve for b. 9000-b=-11,000+b

Answer 1

Answer:

b=10000

Step-by-step explanation:

add b on both sides

9000=-11000+2b

add -11000 on both sides

20000=2b

divide by 2 on both sides

b=10000

Answer 2

Answer:

b=10,000

Step-by-step explanation:

$9,000-b=-11,000+b$

Regroup terms

$9,000-b=b-11,000$

Add b to both sides

$9,000-b+b=b+b-11,000\\9,000=2b-11,000$

Add 11,000 to both sides

$9,000+11,000=2b-11,000+11,000\\9,000+11,000=2b$

Simplify by adding

$20,000=2b$

Divide both sides by 2

$\frac{20,000}{2}=\frac{2b}{2}\\ \\10,000=b$

Switch sides

$b=10,000$

Done.