Mister Exam
Other calculators
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How to use it?
- Equation:
-
Equation 2x=18-x
-
Equation 1-5*x=-6*x+8
-
Equation 9*(x-5)=-x
-
Equation (x-2)^2=(x-9)^2
- Express {x} in terms of y where:
- 10*x+5*y=-17
- 9*x+18*y=3
- 4*x-1*y=-3
- 7*x-6*y=-10
- Sum of series:
-
22
- Expression:
- 22
-
Identical expressions
- (- twenty-five - two *x- twelve)/ twenty-five +(sixty-four -2x- one)/ nine = twenty-two
- ( minus 25 minus 2 multiply by x minus 12) divide by 25 plus (64 minus 2x minus 1) divide by 9 equally 22
- ( minus twenty minus five minus two multiply by x minus twelve) divide by twenty minus five plus (sixty minus four minus 2x minus one) divide by nine equally twenty minus two
- (-25-2x-12)/25+(64-2x-1)/9=22
- -25-2x-12/25+64-2x-1/9=22
- (-25-2*x-12) divide by 25+(64-2x-1) divide by 9=22
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Similar expressions
- (-25-2*x-12)/25+(64+2x-1)/9=22
- 6a^2-(a+2)^2=-4(a-4)
- (-25-2*x-12)/25-(64-2x-1)/9=22
- (25-2*x-12)/25+(64-2x-1)/9=22
- (-25+2*x-12)/25+(64-2x-1)/9=22
- (-25-2*x-12)/25+(64-2x+1)/9=22
- (-25-2*x+12)/25+(64-2x-1)/9=22
- (x-2)^2=(x-9)^2
- cos^2(2x)+cos^2(4x)=1+ctg(6x)
(-25-2*x-12)/25+(64-2x-1)/9=22 equation
The teacher will be very surprised to see your correct solution 😉
The solution
You have entered
[src]
-25 - 2*x - 12 64 - 2*x - 1
-------------- + ------------ = 22
25 9
$$\frac{\left(64 - 2 x\right) - 1}{9} + \frac{\left(- 2 x - 25\right) - 12}{25} = 22$$
Detail solution
Given the linear equation:
Expand brackets in the left part
Looking for similar summands in the left part:
Move free summands (without x)
from left part to right part, we given:
$$- \frac{68 x}{225} = \frac{412}{25}$$
Divide both parts of the equation by -68/225
We get the answer: x = -927/17
(-25-2*x-12)/25+(64-2*x-1)/9 = 22
Expand brackets in the left part
-25/25-2*x/25-12/25+64/9-2*x/9-1/9 = 22
Looking for similar summands in the left part:
138/25 - 68*x/225 = 22
Move free summands (without x)
from left part to right part, we given:
$$- \frac{68 x}{225} = \frac{412}{25}$$
Divide both parts of the equation by -68/225
x = 412/25 / (-68/225)
We get the answer: x = -927/17
Sum and product of roots
[src]
sum
-927 ----- 17
$$- \frac{927}{17}$$
=
-927 ----- 17
$$- \frac{927}{17}$$
product
-927 ----- 17
$$- \frac{927}{17}$$
=
-927 ----- 17
$$- \frac{927}{17}$$
-927/17