2006-10-09 16:25:27 · 10 answers · asked by Quiana 2 in Science & Mathematics ➔ Mathematics
a+5=5a
5=5a-a
5=4a
4a=5
a=(5/4)
a=1.25
2006-10-09 16:27:59 · answer #1 · answered by safrodin 3 · 0⤊ 0⤋
a + 5 = 5a
So if you minus "a" on both sides:
a - a + 5 = 5a - a
Then you simplify it:
a - a = 0
Therefore 0 + 5 = 5a - a
5 = 4a
In other words:
4a = 5
a = 5 divided by 4
a = 1.25
2006-10-09 16:35:54 · answer #2 · answered by Anonymous · 0⤊ 0⤋
a+5 = 5a
5 = 5a - a
5a -a = 5
4a = 5
a = 5/4
2006-10-09 16:32:28 · answer #3 · answered by Gizmo L 4 · 0⤊ 0⤋
if "+" = "1"
a+5 = a(1)5 = 5a
2006-10-09 16:29:27 · answer #4 · answered by Anonymous · 0⤊ 0⤋
5x a=5a not a+5
2006-10-09 16:28:06 · answer #5 · answered by Anonymous · 0⤊ 0⤋
Take ia to the right. Then,
5 = (5 - i).a,
i.e., a = 5/(5-i) Multiplying the numerator and the denominator by (5 + i),
a = 5(5 + i)/26
2006-10-09 16:35:49 · answer #6 · answered by Problem Child 2 · 0⤊ 0⤋
a+5=5a
-a -a
5=4a
a=5/4
2006-10-09 16:28:34 · answer #7 · answered by theresegerbich 1 · 0⤊ 0⤋
a+5 = 5a
subtract a from both sides
5 = 4a
divide both sides by 4
5/4 = a
2006-10-09 16:28:23 · answer #8 · answered by PJ 3 · 0⤊ 0⤋
when you add and subtract stuff to both sides, the equation stays equal.
like a=a
a+3=a+3, right?
this also applies to division and multiplication
so you subtract a from both sides, getting 5 = 4a
then you divide by 4 on both sides, getting 1.25 =a
2006-10-09 16:29:09 · answer #9 · answered by MonkeyGirl 1 · 0⤊ 0⤋
very carefully!
2006-10-09 16:32:34 · answer #10 · answered by mark r 3 · 0⤊ 0⤋