Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation sin(x)=cos(x)
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Equation cos(x)=(-1/2)
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Equation sin(x-1)=0
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Equation 32*x=2
- Express {x} in terms of y where:
- 12*x+5*y=7
- -15*x-12*y=14
- -14*x-19*y=8
- -13*x-15*y=-14
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Identical expressions
- (2x- seven)/(five)= four
- (2x minus 7) divide by (5) equally 4
- (2x minus seven) divide by (five) equally four
- 2x-7/5=4
- (2x-7) divide by (5)=4
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Similar expressions
- (2x+7)/(5)=4
- x+3/4=2x-7/5
(2x-7)/(5)=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
Move free summands (without x)
from left part to right part, we given:
$$\frac{2 x}{5} = \frac{27}{5}$$
Divide both parts of the equation by 2/5
We get the answer: x = 27/2
(2*x-7)/(5) = 4
Expand brackets in the left part
2*x-75 = 4
Move free summands (without x)
from left part to right part, we given:
$$\frac{2 x}{5} = \frac{27}{5}$$
Divide both parts of the equation by 2/5
x = 27/5 / (2/5)
We get the answer: x = 27/2
Sum and product of roots
[src]
sum
27/2
$$\frac{27}{2}$$
=
27/2
$$\frac{27}{2}$$
product
27/2
$$\frac{27}{2}$$
=
27/2
$$\frac{27}{2}$$
27/2