Solve. –7x + 1 + 8x = x + 1
A) No solution B) 0 C) 1 D) Identity
2007-01-21 16:55:13 · 7 answers · asked by sittinncat 1 in Science & Mathematics ➔ Mathematics
-7x+1+8x=x+1
simplifies to x+1=x+1
therefore, the answer is D
2007-01-21 16:59:44 · answer #1 · answered by bruinfan 7 · 0⤊ 0⤋
–7x + 1 + 8x = x + 1 combine like terms
x+1=x+1
D) Identity
2007-01-21 17:05:36 · answer #2 · answered by yupchagee 7 · 0⤊ 0⤋
identity
-7x + 1 + 8x = x + 1
-7x + 8x -x = 1 - 1
0=0
2007-01-21 16:59:58 · answer #3 · answered by dopplerjeff5000 2 · 0⤊ 0⤋
-7x+1+8x = x+1
=> -7x+8x -x = 1-1
=> 8x-8x =1-1
=> 0 = 0
=> answer is B) 0
2007-01-21 17:07:25 · answer #4 · answered by Libra 2 · 0⤊ 0⤋
x + 1 = x + 1 is an identity. That means that one side is identical to the other.
2007-01-21 17:06:42 · answer #5 · answered by luosechi 駱士基 6 · 0⤊ 0⤋
Combine like terms, and it's x+1 =x+1, so 1=1 or x=x, whoever you decide to move first, what's your guess?
2007-01-21 17:02:16 · answer #6 · answered by lynn y 3 · 0⤊ 0⤋
Combines to x+1 = x+1
In such cases there is no solution.
2007-01-21 17:08:56 · answer #7 · answered by Anonymous · 0⤊ 0⤋