How do you evaluate $4- 7a = - 8a + 5a$ ?

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Answer 1 · 2016-12-15T15:45:51

$a=1$

Ok lets start with the right side of the equation.

$-8a+5a= -3a$

So, our equation is now: $4-7a=-3a$

Next we add $7a$ to both sides.

Now, our equation should be: $4=4a$

Finally, we divide both sides by 4.

With this we get $1=a$ , which is our answer.

Hope this helps!

How do you evaluate 4- 7a = - 8a + 5a4- 7a = - 8a + 5a?