更新1:
and graph
3(x-4)+5x<70 solve?
回答 (3)
2016-07-13 2:28 am
3(x - 4) + 5x < 70
3x - 12 + 5x < 70
8x - 12 < 70
8x - 12 + 12 < 70 + 12
8x < 82
8x/8 < 82/8
x < 41/4
x < 10.25
3x - 12 + 5x < 70
8x - 12 < 70
8x - 12 + 12 < 70 + 12
8x < 82
8x/8 < 82/8
x < 41/4
x < 10.25
2016-07-13 3:13 am
3(x - 4) + 5x < 70
3x - 12 + 5x < 70
8x - 12 < 70
8x < 82
x < 82/8, which is 10 1/4 or 10.25. To graph this, use a number line starting from any point of your choice, find 10.25, and bolden everywhere on the line to the LEFT of that point. 10.25 itself is EXCLUDED, so there should be an open circle on that spot to denote its exclusion.
3x - 12 + 5x < 70
8x - 12 < 70
8x < 82
x < 82/8, which is 10 1/4 or 10.25. To graph this, use a number line starting from any point of your choice, find 10.25, and bolden everywhere on the line to the LEFT of that point. 10.25 itself is EXCLUDED, so there should be an open circle on that spot to denote its exclusion.
2016-07-13 2:33 am
3(x - 4) + 5x < 70
8x < 82
x < 41/4
8x < 82
x < 41/4
收錄日期: 2021-04-18 15:14:39
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