0
70 = 81-n
subtract 70 from both sides
0 = 11 - n
subtract 11 from both sides
-11 = -n
divide both sides by -1
11 = n
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∙ 13y ago
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How do you solve 3 to the power of what equals 81?
34 = 81 so x is 4
Solve 3x - 5x plus 11x equals -81?
23
How do you solve x2-81 equals 0?
2x - 81 = 0 Add 81 to both sides. 2x - 81 + 81 = 0 + 81 Substitute, -81 + 81 cancels out. 2x = 81 Divide by 2. x = 40.5 Above answer would be correct if your question was 2x but it was x2 so using the same method you would get x2 = 81 here the opposite of the square is the square root x = 9
What equals to 7 6x 9x 9?
This is poorly typed, so I will assume you mean "what does 76 * 9 * 9 equal?"This can be done with a calculator or by hand. (* = multiplied by)By hand you would simply do long multiplication of 76 * 81 (since you should know that 9 squared is 81)Note that on each line, everything in bold represents the same number (which equals 5670) and everything in italics represents the same number (which equals 486)76 * 9 * 9 = 76 * 81= (70 * 81) + (6 * 81)= ((70 * 80) + (70 * 1)) + ((6 * 80) + (6 * 1))= (5600 + 70) + (480 + 6)= 5670 + 486= 6156
What is 70 percent of 81?
115.71%% rate:= 81/70 * 100%= 1.1571 * 100%= 115.71%
How do you find out how to do 81 is 70 percent of?
Divide 81 by 70%. ===> That is, solve the problem: (81) / (0.7)
How do you solve x2 81 equals 0?
x: x2 - 81 = 0
How do you solve 3 to the power of what equals 81?
34 = 81 so x is 4
Solve 3x - 5x plus 11x equals -81?
23
How do you solve x squared equals negative 81?
x2=-81take the square root of both sidessince 81 is negative you need to take 81 times i when i=-1 then solve as the square root of 81. your answer is x=9i
How do you solve x2-81 equals 0?
2x - 81 = 0 Add 81 to both sides. 2x - 81 + 81 = 0 + 81 Substitute, -81 + 81 cancels out. 2x = 81 Divide by 2. x = 40.5 Above answer would be correct if your question was 2x but it was x2 so using the same method you would get x2 = 81 here the opposite of the square is the square root x = 9
What equals to 7 6x 9x 9?
This is poorly typed, so I will assume you mean "what does 76 * 9 * 9 equal?"This can be done with a calculator or by hand. (* = multiplied by)By hand you would simply do long multiplication of 76 * 81 (since you should know that 9 squared is 81)Note that on each line, everything in bold represents the same number (which equals 5670) and everything in italics represents the same number (which equals 486)76 * 9 * 9 = 76 * 81= (70 * 81) + (6 * 81)= ((70 * 80) + (70 * 1)) + ((6 * 80) + (6 * 1))= (5600 + 70) + (480 + 6)= 5670 + 486= 6156
Solve the proportion 3 over 9 equals x over 81?
3/9 = x/81 x = 27 So: 3/9 = 27/81
What is 70 percent of 81?
115.71%% rate:= 81/70 * 100%= 1.1571 * 100%= 115.71%
How do you solve this type of reasioning such as 92y equals 36 then 9y equals?
92y = 36 y = 36/92 = 9/23 Then: 9y = 81/23
Solve for x log 9 x equals 2?
log9(x)=2 x=9^2 x=81
What number needs to be eliminated to solve this equation 3d equals -81?
84
