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Justin Castro
Mathematics
28 October, 09:12
What is
-3 (x - 1) + 8 (x - 3) = 6x + 7 - 5x
+3
Answers (
1
)
Amanda Barr
28 October, 09:40
0
Add 6x and - 5x to get x.
-3 (x-1) + 8 (x-3) = x+7
Simplify each term.
-3x+3+8x-24=x+7
Add - 3x and 8x to get 5x.
5x+3-24=x+7
Add 3 and - 24 to get - 21.
5x-21=x+7
Since x contains the variable to solve for, move it to the left-hand side of the equation by subtracting x from both sides.
5x-21-x=7
Add 5x and - x to get 4x.
4x-21=7
Since - 21 does not contain the variable to solve for, move it to the right-hand side of the equation by adding 21 to both sides.
4x=21+7
Add 21 and 7 to get 28.
4x=28
Divide each term in the equation by 4.
x=7
x=7
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