Mister Exam
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How to use it?
- Equation:
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Equation sqrt(x+3)=x-3
- Equation x-y=5
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Equation -20*(x-13)=-220
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Equation x-x/12=55/12
- Express {x} in terms of y where:
- 18*x+19*y=7
- -10*x+13*y=5
- 16*x-15*y=4
- 1*x+6*y=6
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Identical expressions
- - twenty *(x- thirteen)=- two hundred and twenty
- minus 20 multiply by (x minus 13) equally minus 220
- minus twenty multiply by (x minus thirteen) equally minus two hundred and twenty
- -20(x-13)=-220
- -20x-13=-220
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Similar expressions
- -20*(x+13)=-220
- x=((20+x)*0,1)/((10+x*(-1))*0,1*(10+x*(-2))^2*0,1^2)*(1/((40-2x)^(1-3)))
- sqrt(((-(12/5)*x^2+1)/((2809/100)-(2203/50)*x^4+(1729/100)*x^2+1))^2+(i*((53/10)*x^3-(47/10)*x)/((2809/100)-(2203/50)*x^4+(1729/100)*x^2+1))^2)=0
- -20*(x-13)=+220
- 20*(x-13)=-220
-20*(x-13)=-220 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:
$$- 20 x = -480$$
Divide both parts of the equation by -20
We get the answer: x = 24
-20*(x-13) = -220
Expand brackets in the left part
-20*x+20*13 = -220
Move free summands (without x)
from left part to right part, we given:
$$- 20 x = -480$$
Divide both parts of the equation by -20
x = -480 / (-20)
We get the answer: x = 24
The graph