Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation x+5=12
-
Equation 4*x-8=x+1
-
Equation 68+x*6=164
-
Equation 3*x^2+6*x+3=0
- Express {x} in terms of y where:
- 10*x+13*y=-12
- 14*x+7*y=19
- -6*x+13*y=-4
- 4*x-7*y=-18
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Identical expressions
- 7x- four -2x- six , five = eleven , five
- 7x minus 4 minus 2x minus 6,5 equally 11,5
- 7x minus four minus 2x minus six , five equally eleven , five
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Similar expressions
- 7x-4-2x+6,5=11,5
- (t+0,1)*1,5=50,004
- 7x+4-2x-6,5=11,5
- 7x-4+2x-6,5=11,5
- (t+0,1)*1,5
7x-4-2x-6,5=11,5 equation
The teacher will be very surprised to see your correct solution 😉
The solution
You have entered
[src]
7*x - 4 - 2*x - 13/2 = 23/2
$$\left(- 2 x + \left(7 x - 4\right)\right) - \frac{13}{2} = \frac{23}{2}$$
Detail solution
Given the linear equation:
Expand brackets in the left part
Expand brackets in the right part
Looking for similar summands in the left part:
Move free summands (without x)
from left part to right part, we given:
$$5 x = 22$$
Divide both parts of the equation by 5
We get the answer: x = 22/5
7*x-4-2*x-(13/2) = (23/2)
Expand brackets in the left part
7*x-4-2*x-13/2 = (23/2)
Expand brackets in the right part
7*x-4-2*x-13/2 = 23/2
Looking for similar summands in the left part:
-21/2 + 5*x = 23/2
Move free summands (without x)
from left part to right part, we given:
$$5 x = 22$$
Divide both parts of the equation by 5
x = 22 / (5)
We get the answer: x = 22/5
Sum and product of roots
[src]
sum
22/5
$$\frac{22}{5}$$
=
22/5
$$\frac{22}{5}$$
product
22/5
$$\frac{22}{5}$$
=
22/5
$$\frac{22}{5}$$
22/5
The graph