Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation 2x^2-8=0
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Equation 8x-15=-12+5x
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Equation 5*(x+9)=-8
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Equation 7(x-1)=3x
- Express {x} in terms of y where:
- 10*x+13*y=-16
- -2*x-7*y=3
- -15*x-15*y=12
- 10*x-13*y=16
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Identical expressions
- x+(seven -x)/ three = four
- x plus (7 minus x) divide by 3 equally 4
- x plus (seven minus x) divide by three equally four
- x+7-x/3=4
- x+(7-x) divide by 3=4
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Similar expressions
- x-(7-x)/3=4
- x+7-x/3=7
- x+(7+x)/3=4
x+(7-x)/3=4 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:
$$\frac{2 x}{3} = \frac{5}{3}$$
Divide both parts of the equation by 2/3
We get the answer: x = 5/2
x+(7-x)/3 = 4
Expand brackets in the left part
x+7/3-x/3 = 4
Looking for similar summands in the left part:
7/3 + 2*x/3 = 4
Move free summands (without x)
from left part to right part, we given:
$$\frac{2 x}{3} = \frac{5}{3}$$
Divide both parts of the equation by 2/3
x = 5/3 / (2/3)
We get the answer: x = 5/2
Sum and product of roots
[src]
sum
5/2
$$\frac{5}{2}$$
=
5/2
$$\frac{5}{2}$$
product
5/2
$$\frac{5}{2}$$
=
5/2
$$\frac{5}{2}$$
5/2