I typed my last question wrong, so I deleted it and I'll correct it here: How would I solve the following equation-
.40x + 65 - .65x = .55
?
Thanks so much!
2007-08-22 02:41:51 · 19 answers · asked by Life On Wheels 2 in Science & Mathematics ➔ Mathematics
0.40x + 65 - 0.65x = 0.55
-0.25x = -64.45
x = 257.8
2007-08-22 02:53:21 · answer #1 · answered by gebobs 6 · 0⤊ 0⤋
.40x+65-.65x=55
Add .40x and -65x
105x+65=55
subtract 65 from both sides of the equation
105x=-10
Divide both sides of the equation with 105
x=10/105
To simplify the fraction divide both numerator and denomator
with 5
This gives us x=2/21
The anwsar to the problem is x=2/21 where as 2/21 can not be reduced any further.
2007-08-29 19:19:44 · answer #2 · answered by scide i 2 · 0⤊ 0⤋
combine like terms:
.40x - .65x = .55 - 65
-.25x = -64.45 -------divide both sides by -.25 and you get:
x=257.8
proof,
substitute x=257.8 into the original equation:
.40(257.8) + 65 - .65(257.8) = .55 ----- this is ALWAYS true
2007-08-29 18:13:45 · answer #3 · answered by antzjosh 2 · 0⤊ 0⤋
u start by using bodmas.40x -65x=25x. 55-65=10 ans =25x + 10
2007-08-29 20:10:27 · answer #4 · answered by brown n 1 · 0⤊ 0⤋
i think you forgot a decimal.
.40x+.65-.65x=.55 (combine your x's)
.65 - .25x = .55 (get like terms on one side)
.1 = .25x (divide both sides by .25)
.4=x (test your answer)
.40(.4) + .65 -.65(.4) = .55
.16 + .65 - .26 = .55
.55 = .55
:o) now.. go get a tutor, to help you with the rest.
2007-08-22 09:58:47 · answer #5 · answered by loki_only1 6 · 0⤊ 0⤋
.40x + 65 - .65x = .55
combine like terms:
.40x - .65x = -.25x
.55 - 65 = -64.45
So, here's your simplified equation:
-.25x = -64.45
Now, divide both sides by -.25, and you have:
x = 257.8
2007-08-22 09:51:29 · answer #6 · answered by Dave 6 · 0⤊ 0⤋
.40x + 65 - .65x = .55
or, x (.40 - .65) + 65 = .55
or, - .25x = .55 - 65
or, - .25x = - 64.45
or, x = -64.45/(- .25)
so, x = 257.8
x = 257.8 is the answer
2007-08-28 04:26:07 · answer #7 · answered by defeNder 3 · 0⤊ 0⤋
first, combine last terms..
.40x - .65x = -.25x
then simplify..
-.25x + 65 = .55 +65
= -.25x = 65.55
answer:
x = 262.2
sorry, but Im not sure with my answer.. Im not that good at math..
2007-08-22 09:54:53 · answer #8 · answered by Anonymous · 0⤊ 0⤋
.40x+65-.65x=.55
= (.40x-65x)=.55-65
= -.25x = -64.45
= x = -64.45/-.25
= x = 2.578
2007-08-28 10:19:49 · answer #9 · answered by `*MiMi*` 2 · 0⤊ 0⤋
.4x + 65 - .65x = 55
.4x - .65x + 65 = .55
.4x -.65x = .55 - 65
-.25x = -64.45
x = -64.45 / -.25
x = 257.8
2007-08-29 02:33:59 · answer #10 · answered by Wile E. 7 · 0⤊ 0⤋
first you would subract .65x from 40x and get neg -.25x then you would subract 65 from .55 and get -64.45 so -.25x = -64.45
then you divide -64.45/.25 and x = 257.8
2007-08-22 09:59:09 · answer #11 · answered by Anonymous · 0⤊ 0⤋