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Mathematics
Jakobe Chambers
11 May, 11:19
What is 7x minus 11 = - 19 plus 3x?
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Cale Marks
11 May, 12:27
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7x - 11 = - 19 + 3x
Let's first get the x isolated to one side, so subtract 3x from both sides:
4x - 11 = - 19
Now add 11 to both sides:
4x = - 8
Now to get x by itself, divide 4x by 4, and then divide the other side by 4, leaving:
x = - 2
Check your work:
7 (-2) - 11 = - 19 + 3 (-2)
-14 - 11 = - 19 - 6
-25 = - 25
Yep!
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