Solve using the multiplication principle.
7x = - 56
x = ?
I need help with this Math problem?
2008-08-20 4:39 pm
回答 (8)
2008-08-20 4:46 pm
✔ 最佳答案
The rule with equations is you have to treat both sides the same.7x = -56
Divide both sides of the equation by 7 to get
x = -8
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2008-08-20 4:48 pm
7x = - 56
x = - 56/7
x = - 8
Answer: x = - 8
Checking:
7(- 8) = - 56
- 56 = - 56
x = - 56/7
x = - 8
Answer: x = - 8
Checking:
7(- 8) = - 56
- 56 = - 56
2008-08-20 4:43 pm
-56 divide by 7
Answer is -8
Answer is -8
2008-08-20 5:17 pm
7x = -56
x = -56/7
x = -8
x = -56/7
x = -8
2008-08-20 4:49 pm
-8 that's the answer
2008-08-20 4:45 pm
-8
2008-08-20 4:44 pm
all you have to do is know that since x is multiplied by 7 you can divide both sides by 7
7/7=1 and -56/7=-8
so 1x=8
1x is the same as x so...
x=8
7/7=1 and -56/7=-8
so 1x=8
1x is the same as x so...
x=8
2008-08-20 4:42 pm
-8
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