Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation 3x-1=2x
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Equation 6*(2x+3)-4*(2x-4)=0
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Equation -7x-40=3x
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Equation 6*cos(x)^(2)+5*sin(x)-7=0
- Express {x} in terms of y where:
- -5*x+12*y=14
- 2*x-19*y=0
- -12*x+5*y=-13
- -1*x+3*y=8
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Identical expressions
- one 0x− four (x+1)=−2x
- 10x−4(x plus 1) equally −2x
- one 0x− four (x plus 1) equally −2x
- 10x−4x+1=−2x
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Similar expressions
- −2(x−5)=9.
- 10x−4(x-1)=−2x
10x−4(x+1)=−2x 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:
$$6 x = 4 - 2 x$$
Move the summands with the unknown x
from the right part to the left part:
$$8 x = 4$$
Divide both parts of the equation by 8
We get the answer: x = 1/2
10*x-4*(x+1) = -2*x
Expand brackets in the left part
10*x-4*x-4*1 = -2*x
Looking for similar summands in the left part:
-4 + 6*x = -2*x
Move free summands (without x)
from left part to right part, we given:
$$6 x = 4 - 2 x$$
Move the summands with the unknown x
from the right part to the left part:
$$8 x = 4$$
Divide both parts of the equation by 8
x = 4 / (8)
We get the answer: x = 1/2
Sum and product of roots
[src]
sum
1/2
$$\frac{1}{2}$$
=
1/2
$$\frac{1}{2}$$
product
1/2
$$\frac{1}{2}$$
=
1/2
$$\frac{1}{2}$$
1/2
The graph