Mister Exam
Other calculators
-
How to use it?
- Equation:
-
Equation sin(x)=0
-
Equation 6*x^2+x-7=0
-
Equation -2*(-2-y)-y-2=0
-
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
- Derivative of:
-
y=9
-
Identical expressions
- three *(two *y- seven)=y= nine
- 3 multiply by (2 multiply by y minus 7) equally y equally 9
- three multiply by (two multiply by y minus seven) equally y equally nine
- 3(2y-7)=y=9
- 32y-7=y=9
-
Similar expressions
- 3*(2*y+7)=y=9
3*(2*y-7)=y=9 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:
$$6 y = y + 21$$
Move the summands with the unknown y
from the right part to the left part:
$$5 y = 21$$
Divide both parts of the equation by 5
We get the answer: y = 21/5
3*(2*y-7) = y
Expand brackets in the left part
3*2*y-3*7 = y
Move free summands (without y)
from left part to right part, we given:
$$6 y = y + 21$$
Move the summands with the unknown y
from the right part to the left part:
$$5 y = 21$$
Divide both parts of the equation by 5
y = 21 / (5)
We get the answer: y = 21/5
Sum and product of roots
[src]
sum
21/5
$$\frac{21}{5}$$
=
21/5
$$\frac{21}{5}$$
product
21/5
$$\frac{21}{5}$$
=
21/5
$$\frac{21}{5}$$
21/5