Question

slove this and u are smart for life a-15=4a-3

Answer 1

Step-by-step explanation:

To solve for a, the best way might be to subtract one a from each side, so that the resulting coefficient of a is positive.

1a-15=4a-3

-15 = 3a -3; now add 3 to each side:

-12 = 3a

Now divide each side by 3: -4 = a.

An advantage to this idea is that, when solving INEQUALITIES, one avoids division by a negative coefficient. Example:

a-15 ≤ 4a-3

-15 ≤ 3a - 3

-12 ≤ 3a

-4 ≤ a. Reading this aloud, we read from right to left: a IS GREATER THAN OR EQUAL TO -4. (We do this because the natural 'subject' of this solution, a, appears on the right side.)

hope this will help you.

thank you

Answer 2

Answer:

a-45=4a-3

-45+3=4a-a

-42=3a

-42/3=a

-14=a

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