solve for X, 5x-3=2x+9?
回答 (5)
5x - 3 = 2x + 9
5x - 2x = 9 + 3
3x = 12
x = 12/3 or 4
Answer: x = 4
Proof:
5(4) - 3 = 2(4) + 9
20 - 3 = 8 + 9
17 = 17
5x=2x+9+3
5x=2x+12
5x-2x=12
3x=12
x=4
5x - 3 = 2x + 9
5x - 2x = 3 + 9
3x = 12
x = 12/3
x = 4
5x-2x = 9+3
3x = 12
x = 4
收錄日期: 2021-05-01 12:37:39
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