Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation 81*x^3+18*x^2+x=0
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Equation 6=8-5(7x-1)
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Equation 3x=28-x
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Equation 3x=2
- Express {x} in terms of y where:
- -13*x-7*y=16
- -16*x+10*y=-11
- -2*x-15*y=-1
- -14*x+5*y=-1
- Sum of series:
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56
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Identical expressions
- - seven (two -3x)= fifty-six
- minus 7(2 minus 3x) equally 56
- minus seven (two minus 3x) equally fifty minus six
- -72-3x=56
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Similar expressions
- -7*(2-3*x)=56
- -7(2+3x)=56
- 7(2-3x)=56
- ((1/5))^(x)^(2)*5^(2*x+2)=(1/5)^(6)
- 3*4^x+2*9^x=5*6^x
-7(2-3x)=56 equation
The teacher will be very surprised to see your correct solution 😉
The solution
Detail solution
Given the linear equation:
Expand brackets in the left part
Move free summands (without x)
from left part to right part, we given:
$$21 x = 70$$
Divide both parts of the equation by 21
We get the answer: x = 10/3
-7*(2-3*x) = 56
Expand brackets in the left part
-7*2+7*3*x = 56
Move free summands (without x)
from left part to right part, we given:
$$21 x = 70$$
Divide both parts of the equation by 21
x = 70 / (21)
We get the answer: x = 10/3
Sum and product of roots
[src]
sum
10/3
$$\frac{10}{3}$$
=
10/3
$$\frac{10}{3}$$
product
10/3
$$\frac{10}{3}$$
=
10/3
$$\frac{10}{3}$$
10/3
The graph