1. 8x - 2 = -9 + 7x
2. p - 1 = 5p + 3p - 8
3. 5n + 34 = -2 (1 - 7n)
4. -18 - 6k = 6 (1 + 3k)
solve for x? solving two step equations?
2017-12-15 1:30 pm
回答 (4)
2017-12-15 2:50 pm
1.
8x - 2 = -9 + 7x
8x - 7x = -9 + 2
x = -7
2.
p - 1 = 5p + 3p - 8
p - 5p - 3p = -8 + 1
-7p = -7
p = -7/(-7)
p = 1
3.
5n + 34 = -2 (1 - 7n)
5n + 34 = -2 + 14n
5n - 14n = -2 - 34
-9n = -36
n = -36/(-9)
n = 4
4.
-18 - 6k = 6 (1 + 3k)
-18 - 6k = 6 + 18k
-6k - 18k = 6 + 18
-24k = 24
k = 24/(-24)
k = -1
8x - 2 = -9 + 7x
8x - 7x = -9 + 2
x = -7
2.
p - 1 = 5p + 3p - 8
p - 5p - 3p = -8 + 1
-7p = -7
p = -7/(-7)
p = 1
3.
5n + 34 = -2 (1 - 7n)
5n + 34 = -2 + 14n
5n - 14n = -2 - 34
-9n = -36
n = -36/(-9)
n = 4
4.
-18 - 6k = 6 (1 + 3k)
-18 - 6k = 6 + 18k
-6k - 18k = 6 + 18
-24k = 24
k = 24/(-24)
k = -1
2017-12-17 4:07 am
1. x = - 7.
2. p = 1.
3. n = 4.
4. k = - 1.
2. p = 1.
3. n = 4.
4. k = - 1.
2017-12-15 6:28 pm
1.
8x - 2 = -9 + 7x
x = -7
2.
p - 1 = 5p + 3p - 8
p = 1
3.
5n + 34 = -2 (1 - 7n)
n = 4
4.
-18 - 6k = 6 (1 + 3k)
k = -1
8x - 2 = -9 + 7x
x = -7
2.
p - 1 = 5p + 3p - 8
p = 1
3.
5n + 34 = -2 (1 - 7n)
n = 4
4.
-18 - 6k = 6 (1 + 3k)
k = -1
2017-12-15 6:04 pm
1
8x - 2 = - 9 + 7x
2x = - 7
x = - 5/2
2.
p - 1 = 8p - 8
7 = 7p
p = 1
3.
5n + 14 = - 2 + 14n
16 = 9 n
n = 16/9
4.
- 18 - 6k = 6 + 18 k
- 24 = 24 k
k = - 1
8x - 2 = - 9 + 7x
2x = - 7
x = - 5/2
2.
p - 1 = 8p - 8
7 = 7p
p = 1
3.
5n + 14 = - 2 + 14n
16 = 9 n
n = 16/9
4.
- 18 - 6k = 6 + 18 k
- 24 = 24 k
k = - 1
收錄日期: 2021-04-18 17:59:48
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