Mister Exam
Other calculators
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How to use it?
- Equation:
- Equation x^3-64*x=0
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Equation (x+2)^2=4
-
Equation 5*x=50
- Equation x+2*y=7
- Express {x} in terms of y where:
- -17*x-8*y=4
- -15*x+15*y=-14
- -7*x-8*y=19
- -19*x-3*y=3
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Identical expressions
- -(4x- seven)=5x+(eleven -7x)
- minus (4x minus 7) equally 5x plus (11 minus 7x)
- minus (4x minus seven) equally 5x plus (eleven minus 7x)
- -4x-7=5x+11-7x
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Similar expressions
- 5*x^2-4*x-7=0
- (3x^2-4x-7)/(x^2+7x-6)=0
- (4x-7)=5x+(11-7x)
- -(4x-7)=5x-(11-7x)
- -(4x-7)=5x+(11+7x)
- -3*x+9=0*i-4*x-7
- -(4x+7)=5x+(11-7x)
- 4*x^3-4*x-7=0
-(4x-7)=5x+(11-7x) 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
Expand brackets in the right part
Looking for similar summands in the right part:
Move free summands (without x)
from left part to right part, we given:
$$- 4 x = 4 - 2 x$$
Move the summands with the unknown x
from the right part to the left part:
$$\left(-2\right) x = 4$$
Divide both parts of the equation by -2
We get the answer: x = -2
-(4*x-7) = 5*x+(11-7*x)
Expand brackets in the left part
-4*x+7 = 5*x+(11-7*x)
Expand brackets in the right part
-4*x+7 = 5*x+11-7*x
Looking for similar summands in the right part:
7 - 4*x = 11 - 2*x
Move free summands (without x)
from left part to right part, we given:
$$- 4 x = 4 - 2 x$$
Move the summands with the unknown x
from the right part to the left part:
$$\left(-2\right) x = 4$$
Divide both parts of the equation by -2
x = 4 / (-2)
We get the answer: x = -2