Solve 3 - x= -9. O A. x= 6 O B. x= 12 O c. x= -6 O D. x=-12

Mathematics

2 answers:

Katarina [22]2 years ago

6 0

Answer:

x=12

Step-by-step explanation:

you need the x alone so you substract 3 from both sides.

Then you have, -x= -12

You need the x positive so you change the sign for it but as it is an equation you need to do the same thing on the other side, making both sides positive.

x=12

Zarrin [17]2 years ago

6 0

The answer is B. 3 - x = -9
-x + 3 = -9
Subtract 3 from both sides of the equation. Simplify

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Answer:

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Step-by-step explanation:

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3 0

3 years ago

8. Solve the system using elimination.<br> 3x - 4y = 9<br> - 3x + 2y = 9

olga nikolaevna [1]

Answer:

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Add these equations to eliminate x: −2y=18

Then solve−2y=18

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Now that we've found y let's plug it back in to solve for x.

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