Answered

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If a - 8 equals four plus 3 times a, what is the value of -2a?

Sagot :

Answer:

12

Step-by-step explanation:

Let's write this into a equation:

a - 8 equals is: [tex]a-8=[/tex]

four plus 3 times a is: [tex]4+3a[/tex]

Combining it together we get:

[tex]a-8=4+3a[/tex]

If we subtract 3a from both sides we get:

[tex]-2a-8=4[/tex]

Now we add 8 to both sides to get:

[tex]-2a=12[/tex]

Normally, we would divide both sides by -2 to solve for a, but the question wants us to get the value of -2a, which is 12.

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