2x-3 over 4 + 5=3x
2007-08-08 09:19:32 · 3 answers · asked by Jake P 2 in Science & Mathematics ➔ Mathematics
This is an algebra problem.
(2x - 3) / (4 + 5) = 3x
(2x - 3) / 9 = 3x
You can cross-multiply.
2x - 3 = 3x*9
2x - 3 = 27x
Now combine like terms.
-25x = 3
Divide both sides by -25.
x = -3/25
2007-08-08 09:23:50 · answer #1 · answered by DavidK93 7 · 1⤊ 1⤋
It is impossible to know the problem, because we can't tell if the 2x-3 is also over the 5. You should use parentheses.
(2x-3)/(4) + 5 = 3x
(2x-3)/(4+5)=3x
You need to get rid of the denominator (4), so multiply both sides by 4:
2x-3+20=12x
Simplify:
2x+17=12x
Subtract 2x from both sides:
17=10x
divide both sides by 10:
x=17/10 or 1 and 7/10
2007-08-08 16:25:46 · answer #2 · answered by Larry C 3 · 0⤊ 0⤋
(2x-3)/4 +5=3x
(2x-3)+5*4=3*4*x
or 2x-3+20=12x
or 2x-12x+17=0
0r -10x=-17
or x=17/10 ans
2007-08-08 16:38:15 · answer #3 · answered by MAHAANIM07 4 · 0⤊ 0⤋