Question

for what values of x is each equation true ..... x-a=b

Answer 1

x - a = b

solve for x

Answer 2

Could be that easy, I suppose...

Answer 3

so what would be the answer ?

Answer 4

add a to both sides what do you get?

Answer 5

im confused since you dont know what the variable are how do you add

Answer 6

let me give an example

a - b = c

if i add b to both sides

a - b + b = c + b

since b and -b are common terms, i can combine them..which will be 0

so i have

a = c + b

Answer 7

do you get the idea?

Answer 8

ya

Answer 9

good

x - a = b

add a to both sides

Answer 10

so would it be x=a+b

Answer 11

right

Answer 12

so the value of x in the expression is x=a+b

Answer 13

yes

Answer 14

thanks alot !

Answer 15

so for ax=b the answer would be ab=x