Solve. (4a-2b)-(6a-8b)
2007-12-12 01:52:26 · 6 answers · asked by ivan m 2 in Science & Mathematics ➔ Mathematics
-2a +6b or 2(3b-a)
2007-12-12 01:56:24 · answer #1 · answered by David F 5 · 0⤊ 0⤋
The word "solve" suggests that there should be an equation which , in turn , requires an = sign.
In this case, should read as:-
Simplify the following expression:-
4a - 2b - 6a + 8b = 6b - 2a
2007-12-12 02:26:06 · answer #2 · answered by Como 7 · 0⤊ 0⤋
Actually, you're not SOLVING anything, since you don't have enough info to figure out what numbers the variables a and b represent. You are only SIMPLIFYING the expression.
The first two guys have it right. Mariah forgot that a (- -8b) is actually a (+8b).
2007-12-12 02:04:55 · answer #3 · answered by kcbranaghsgirl 6 · 0⤊ 0⤋
(4a-2b)-(6a-8b)=
4a-6a-2b+8b=
-2a+6b
-2a+6b= 0
-2a = -6b
a= 3b
-2a+6b=0
6b=2a
b= 1/3 a
2007-12-12 02:06:17 · answer #4 · answered by Edenia 3 · 0⤊ 0⤋
(4a-2b)- (6a-8b)
= 4a - 2b -6a + 8b
= 6b-2a
= 2(3b-a)
2007-12-12 02:00:49 · answer #5 · answered by PushUP 2 · 1⤊ 0⤋
drop the () and then solve:
4a-2b-6a-8b or 4a+-2b+-6a+-8b
add(or subtract)
-2a+-10b or -2a-10b
hope this helped!
2007-12-12 02:02:33 · answer #6 · answered by Mariah B 3 · 0⤊ 2⤋