Let x be the number of coins bert had
let y be the number of coins georgia has
x+3 =2y equation 1
x-4 = y equation 2
now, since y=x-4, you can put that in the first equation
it becomes x+3= 2(x-4) right because y is the same thing as x but you can't solve for 2 letters so we have to make them the same.
so your new equation is x+3 = 2(x-4)
expand so you get x+3= 2x -8
then solve for x by putting the x's on one side and the numbers on the other
bring x over --- 3= 2x- 8 - x and subtract the xs to get 3= x-8
then bring the 8 to the other side
3+ 8 = x
x= 11
note: remember! when you're bringing numbers and letters to the other side, you have to reverse the operation: say you have x+1 = 2 --- when bringing the one over to the other side it becomes a -1 ---- x+1= 2-1
so bert has 11 cents.
this question is a little difficult, it takes some practice and it's stuff you'll learn in high school so don't worry too much if you don't get it
Remark
Sometimes you can avoid the distributive property. This is one of those cases. Start by dividing by 5. You can only do this is there a common factor between the left and right sides of the equal sign.
Solve
There is only 1 solution. If there was an x^2 somewhere, you would have 2 and if there was an x^3 there would be 3.
5(2x - 3) = 5 Divide both sides by 5
5(2x - 3)/5 = 5/5
(2x - 3) = 1 Remove the brackets.
2x - 3 = 1 Add 3 to both sides.
2x = 1 + 3
2x = 4 Divide by 2
x = 4/2
x = 2 <<<<< Answer
Answer:thats
Step-by-step explanation:
its
25 & 30
25x30=750
25 w 30 l
sorry i put so much, i had to in order to answer for you