- 2 x + 1 > 7 Subtract 1 to both sides
- 2 x + 1 - 1 > 7 - 1
- 2 x > 6
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Remark :
When you multiply or divide left and right sides of inequality WITH NEGATIVE NUMBER , you MUST CHANGE the direction of the inequality.
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x < - 3
-2x+1>7
1 answer