Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation 2x^2-x=0
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Equation 3x-1=2x
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Equation -x^2+6*x-7=0
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Equation 7x=-3
- Express {x} in terms of y where:
- 15*x+17*y=-8
- 18*x+9*y=19
- 1*x-5*y=-14
- 5*x+15*y=-8
- Graphing y =:
- 2x-2
- 2x-2
- Derivative of:
- 2x-2
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Identical expressions
- 4x- five (six -x)= two x-2
- 4x minus 5(6 minus x) equally 2x minus 2
- 4x minus five (six minus x) equally two x minus 2
- 4x-56-x=2x-2
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Similar expressions
- 4x-5(6-x)=2x+2
- (49.63/2)*x^2-(22/6)*x^3+(21/2)*(x-2.6)^2=123.37
- 5x-3*(0,9+2x)-2,76=-2*(1,6-1,9)
- 4x+5(6-x)=2x-2
- 4x-5(6+x)=2x-2
- 2*sin^(2)x-2sqr(3)sinx*cosx-2=0
- 3*(x+2)*(x-2)*(x^2+4)=0
4x-5(6-x)=2x-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:
$$9 x = 2 x + 28$$
Move the summands with the unknown x
from the right part to the left part:
$$7 x = 28$$
Divide both parts of the equation by 7
We get the answer: x = 4
4*x-5*(6-x) = 2*x-2
Expand brackets in the left part
4*x-5*6+5*x = 2*x-2
Looking for similar summands in the left part:
-30 + 9*x = 2*x-2
Move free summands (without x)
from left part to right part, we given:
$$9 x = 2 x + 28$$
Move the summands with the unknown x
from the right part to the left part:
$$7 x = 28$$
Divide both parts of the equation by 7
x = 28 / (7)
We get the answer: x = 4