2006-10-08 12:12:53 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
ok. i'll show you how
1. Distributive property. multiply 4 by everything on the left side and -10 by everything on the right
8a-4=-10a+50
2. Subtract 8a from both sides so all your variables are on one side of the equation
-4=-18a+50
3. Subtract 50 from both sides
-54=-18a
4. Divide both sides by -18 to get your answer
3=a
2006-10-08 14:28:27 · answer #1 · answered by Mysterious Mistress 1 · 0⤊ 0⤋
4(2a-1)=-10(a-5)
8a+4=-10a+50
add -10a to 8a
18a+4=50
subtract 4
18a=46
divide by 18 on both sides
a=23/9(answer as a fraction)or 2.5 repeating decimal or 2.6
2006-10-12 17:25:47 · answer #2 · answered by ♥KiYa♥ 3 · 0⤊ 1⤋
4(2a-1)= -10(a-5)
8a-4=-10a+50
18a=54
a=3
2006-10-11 19:42:52 · answer #3 · answered by yupchagee 7 · 0⤊ 0⤋
Distribute: 8a-4 = -10a + 50
Rearrange: 8a+10a = 50+4
Combine like terms: 18a = 54
Divide: a=3.
2006-10-08 19:32:04 · answer #4 · answered by James L 5 · 1⤊ 0⤋