Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation cos(x)=1/3
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Equation 13/(x-5)=5/(x-13)
- Equation x^2-289=0
- Equation cosx/1+sinx=0
- Express {x} in terms of y where:
- -12*x+3*y=-9
- 9*x-18*y=6
- -1*x+19*y=-10
- 4*x+13*y=13
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Identical expressions
- - two (six +x)= eighteen -3x
- minus 2(6 plus x) equally 18 minus 3x
- minus two (six plus x) equally eighteen minus 3x
- -26+x=18-3x
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Similar expressions
- 2(6+x)=18-3x
- (7x-18)-(3x-13)=3
- -2(6-x)=18-3x
- -2(6+x)=18+3x
- 87/(10*10^7)=x^9*((-7.2801)*e-36)+x^8*(6.27271*e-33)+x^7*((-1.14539)*e-30)+x^6*((-3.05711)*e-28)+x^5*(9.48465*e-26)+x^4*(1.99067*e-24)+x^3*((-1.71101)*e-21)+x^2*(3.43537*e-20)+0.03778*x-0.95544
- -(10*x-18)+19*(4+3*x)=9-21*(x+7)+4*(18-3*x)
-2(6+x)=18-3x 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:
Move the summands with the unknown x
from the right part to the left part:
We get the answer: x = 30
-2*(6+x) = 18-3*x
Expand brackets in the left part
-2*6-2*x = 18-3*x
Move free summands (without x)
from left part to right part, we given:
Move the summands with the unknown x
from the right part to the left part:
We get the answer: x = 30
The graph