Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation -9*(8-9x)=4x+5
-
Equation sin(x)+cos(x)=0
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Equation sin(x)-cos(x)=0
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Equation 9*x^2-4=0
- Express {x} in terms of y where:
- (x^2+y^2)×(x+y-3)=2xy
- sqrt(1-x)^2+(4-y)^2=0
- lnx+sin(y/x+2x)=4
- cos(x-y)+(4-y)/(x^2)+ln(1-x^2)+tg2y+2=0
- Graphing y =:
- 5x-2
- Inequation:
- 5x-2
- Integral of d{x}:
- 5x-2
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Identical expressions
- four (x+ two y)- eight =5x-2
- 4(x plus 2y) minus 8 equally 5x minus 2
- four (x plus two y) minus eight equally 5x minus 2
- 4x+2y-8=5x-2
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Similar expressions
- (|5*x-2|)=3+2*x
- 4(x+2y)+8=5x-2
- 4(x+2y)-8=5x+2
- 4(x-2y)-8=5x-2
- 5*x-2*x-0*i=7*i-6
4(x+2y)-8=5x-2 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
Looking for similar summands in the left part:
Move free summands (without x)
from left part to right part, we given:
$$4 x + 8 y = 5 x + 6$$
Move the summands with the other variables
from left part to right part, we given:
$$4 x = 5 x + \left(-8\right) y + 6$$
Divide both parts of the equation by 4
We get the answer: x = -6 + 8*y
4*(x+2*y)-8 = 5*x-2
Expand brackets in the left part
4*x+4*2*y-8 = 5*x-2
Looking for similar summands in the left part:
-8 + 4*x + 8*y = 5*x-2
Move free summands (without x)
from left part to right part, we given:
$$4 x + 8 y = 5 x + 6$$
Move the summands with the other variables
from left part to right part, we given:
$$4 x = 5 x + \left(-8\right) y + 6$$
Divide both parts of the equation by 4
x = 6 - 8*y + 5*x / (4)
We get the answer: x = -6 + 8*y
The graph
Rapid solution
[src]
x1 = -6 + 8*re(y) + 8*I*im(y)
$$x_{1} = 8 \operatorname{re}{\left(y\right)} + 8 i \operatorname{im}{\left(y\right)} - 6$$
x1 = 8*re(y) + 8*i*im(y) - 6
Sum and product of roots
[src]
sum
-6 + 8*re(y) + 8*I*im(y)
$$8 \operatorname{re}{\left(y\right)} + 8 i \operatorname{im}{\left(y\right)} - 6$$
=
-6 + 8*re(y) + 8*I*im(y)
$$8 \operatorname{re}{\left(y\right)} + 8 i \operatorname{im}{\left(y\right)} - 6$$
product
-6 + 8*re(y) + 8*I*im(y)
$$8 \operatorname{re}{\left(y\right)} + 8 i \operatorname{im}{\left(y\right)} - 6$$
=
-6 + 8*re(y) + 8*I*im(y)
$$8 \operatorname{re}{\left(y\right)} + 8 i \operatorname{im}{\left(y\right)} - 6$$
-6 + 8*re(y) + 8*i*im(y)