Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation exp(x)=0
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Equation x^3-3x^2=0
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Equation 0=2-3x
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Equation 3x-7=x-11
- Express {x} in terms of y where:
- -17*x-12*y=-4
- 9*x-19*y=-20
- 15*x+17*y=-10
- -4*x+14*y=-4
- -5
- Integral of d{x}:
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-5
- Derivative of:
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-5
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Identical expressions
- 4x+ three (x- seven)=- five
- 4x plus 3(x minus 7) equally minus 5
- 4x plus three (x minus seven) equally minus five
- 4x+3x-7=-5
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Similar expressions
- 4x-3(x-7)=-5
- 4x+3(x+7)=-5
- 3y-(5-y)=11
- 4x+3(x-7)=+5
4x+3(x-7)=-5 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:
$$7 x = 16$$
Divide both parts of the equation by 7
We get the answer: x = 16/7
4*x+3*(x-7) = -5
Expand brackets in the left part
4*x+3*x-3*7 = -5
Looking for similar summands in the left part:
-21 + 7*x = -5
Move free summands (without x)
from left part to right part, we given:
$$7 x = 16$$
Divide both parts of the equation by 7
x = 16 / (7)
We get the answer: x = 16/7
Sum and product of roots
[src]
sum
16/7
$$\frac{16}{7}$$
=
16/7
$$\frac{16}{7}$$
product
16/7
$$\frac{16}{7}$$
=
16/7
$$\frac{16}{7}$$
16/7