solve equation for x?

0 ⤊

2/5=x-2/20

2007-12-03 14:13:17 · 4 answers · asked by God Bless America!~ 4 in Science & Mathematics ➔ Mathematics

2/5=x-2/20

use 20 as the common denominator
8=x-2
8+2=x
10=x

2007-12-03 16:30:04 · answer #1 · answered by Dave aka Spider Monkey 7 · 0⤊ 0⤋

Multiply both sides by 20 so you eliminate fractions. That leaves you with 8 = x-2. Add 2 to both sides. X=10.

2007-12-03 22:18:13 · answer #2 · answered by Anonymous · 0⤊ 0⤋

xk9x is correct. x is 10.

2/5 = (10-2)/20

2/5 = 8/20

true.

2007-12-03 22:20:14 · answer #3 · answered by grompfet 5 · 0⤊ 0⤋

8=20x-2
10=20x
x=1/2

2007-12-03 22:16:55 · answer #4 · answered by whocares8523 1 · 0⤊ 2⤋