Move the decimal point 5 places to the left:
3.0 x 10-5 = 0.00003
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X + 3 = 10. X + 3 - 3 = 10 - 3 X = 7 Double check your solution. X + 3 = 10 7 + 3 = 10 10 = 10 So X + 3 = 10 when X = 7.
3 x 104
The solution for x is 3. Since 3 is to 10 as 2x is to 20 Then the ratio holds: 3 / 10 = 2x / 20 Solving for x: 3 / 10 = 2x / 20 0.3 = x/10 (0.3 * 10) = x 3 = x x = 3
If: -3-x = 10 Then: x = -13
3 + √x = 10 √ x = 10 - 3 √ x = 7 x = 7² x = 49