Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation x/4+x=12
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Equation 5^x=6-x
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Equation -5+2x=-2x-7
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Equation sin(pi*x)=-1
- Express {x} in terms of y where:
- -16*x-9*y=-1
- -18*x-13*y=2
- 8*x-4*y=10
- -6*x-11*y=-20
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Identical expressions
- - five +2x=-2x- seven
- minus 5 plus 2x equally minus 2x minus 7
- minus five plus 2x equally minus 2x minus seven
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Similar expressions
- (2x-5)+2x=110
- 1,5(2x-5)+2x=5(0,5x-1,5)-10
- -5-2x=-2x-7
- 5-2(x-7)=5x-(2x-4)
- 4*x+5/x+2-2*x-7/3*x-6=0
- -5+2x=-2x+7
- (x-7)^4-2(x-7)^2-15=0
- -5+2*x=-2*x-3
- 5+2x=-2x-7
- -2*x-7=-4*x
- -5+2x=+2x-7
-5+2x=-2x-7 equation
The teacher will be very surprised to see your correct solution 😉
The solution
Detail solution
Given the linear equation:
Move free summands (without x)
from left part to right part, we given:
$$2 x = - 2 x - 2$$
Move the summands with the unknown x
from the right part to the left part:
$$4 x = -2$$
Divide both parts of the equation by 4
We get the answer: x = -1/2
-5+2*x = -2*x-7
Move free summands (without x)
from left part to right part, we given:
$$2 x = - 2 x - 2$$
Move the summands with the unknown x
from the right part to the left part:
$$4 x = -2$$
Divide both parts of the equation by 4
x = -2 / (4)
We get the answer: x = -1/2
Sum and product of roots
[src]
sum
-1/2
$$- \frac{1}{2}$$
=
-1/2
$$- \frac{1}{2}$$
product
-1/2
$$- \frac{1}{2}$$
=
-1/2
$$- \frac{1}{2}$$
-1/2
The graph