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3 years ago

Solve for x. -9x - 9 = x + 21

Mathematics

2 answers:

Nataly_w [17]3 years ago

6 0

Answer:

x=-3

Step-by-step explanation:

Original equation: -9x-9 = x+21

Add 9 to both sides: -9x=x+30

Subtract x from both sides: -10x=30

Divide by -10 on both sides: x=-3.

Let me know if this helps!

gregori [183]3 years ago

3 0

Answer:

x = -3

Step-by-step explanation:

1. add 9 to both sides -9x-9+9=x+21+9

2. simplify -9x=x+30

3. subtract x from both sides -9x-x=x+30-x

4. simplify -10x=30

5. divide both sides by -10 -10x/-10 = 30/-10

simplify and you're done!

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