Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation sin(x)=0
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Equation 6*x^2+x-7=0
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Equation -2*(-2-y)-y-2=0
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Equation 2*x^2+18*x=0
- Express {x} in terms of y where:
- -10*x+7*y=-4
- 12*x-17*y=9
- 17*x-17*y=6
- -19*x-9*y=0
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Identical expressions
- (2y+ three)= twenty-one -3y
- (2y plus 3) equally 21 minus 3y
- (2y plus three) equally twenty minus one minus 3y
- 2y+3=21-3y
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Similar expressions
- (2y-3)=21-3y
- 14+2*y+3*y=18
- (2y+3)=21+3y
- 27=2y+39
- y2+6y-2y+326=12
- -(y-7)²-12y+36
(2y+3)=21-3y 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 y)
from left part to right part, we given:
$$2 y = 18 - 3 y$$
Move the summands with the unknown y
from the right part to the left part:
$$5 y = 18$$
Divide both parts of the equation by 5
We get the answer: y = 18/5
(2*y+3) = 21-3*y
Expand brackets in the left part
2*y+3 = 21-3*y
Move free summands (without y)
from left part to right part, we given:
$$2 y = 18 - 3 y$$
Move the summands with the unknown y
from the right part to the left part:
$$5 y = 18$$
Divide both parts of the equation by 5
y = 18 / (5)
We get the answer: y = 18/5
Sum and product of roots
[src]
sum
18/5
$$\frac{18}{5}$$
=
18/5
$$\frac{18}{5}$$
product
18/5
$$\frac{18}{5}$$
=
18/5
$$\frac{18}{5}$$
18/5