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2x + 7 = x + 3 what is X ?

User Armon
by
8.4k points

2 Answers

3 votes
x = -4

2x+7 = x+3
- x -x
_________
1x+7 = 3
-7 -7
_________
x = -4



User TetonSig
by
8.8k points
7 votes
2x + 7 = x + 3

First, subtract x from both sides. / Your problem should look like:
2x + 7 - x = 3
Second, simplify 2x + 7 - x to x + 7. / Your problem should look like:
x + 7 = 3
Third, subtract 7 from both sides. / Your problem should look like:
x = 3 - 7
Fourth, subtract 3 - 7 to get -4. / Your problem should look like:
x = -4

Answer: x = -4

User Rroche
by
8.5k points

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