2x+5=13 ? please help?
回答 (9)
2x+5=13
2x=13-5
2x=8
x=8/2
x=4
2x+5=13
2x+5-5=13-5
2x=8
x=4
x is 4 because 2(4) is 8+5=13
Rewrite as : 2x=13-5, or 2x=8, so x=4
Subtract 5 from both sides: 2x = 8.
Divide both sides by 2: x = 4.
2x + 5 = 13
2x = 13 - 5
2x = 8
x = 8/2
x = 4
收錄日期: 2021-05-01 01:37:16
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