How i do i solve this equation..?

Question

it says solve the equation but i dont get it....

theres ones like a+9=15 and stuff. what do i do? find out what a is? if so would the answer be 6?

Answer 1

You want to get the a or letter by itself.....so in this case you would subtract 9 from 15 & end up with a=6!

You were correct!!!!! ;D

Answer 2

yes. A is a variable. you treat it like a number. what do you have to add to 9 to make 15 or what to you have to subtract from 15 to get 9?

Answer 3

yes

Answer 4

Yer, your right the answer is 6!

It's a case of transposition of formulas, so you need the numbers on one side, BUT remember if you change the side you must change the sign!!!  IF it's a + (Addition) it becomes a - (Negative)  and also in reverse, and if it's an x (Multiplication) it becomes a / (Divition)

Hope this helps

  

Answer 5

a + 9 = 15

    -9     -9

      a = 6