Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation z^2-4*z+5=0
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Equation (25+x)-10=40
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Equation x^2+4*x-21=0
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Equation 2^x=10
- Express {x} in terms of y where:
- 11*x+3*y=-16
- -2*x+13*y=-6
- 20*x-3*y=3
- 18*x-7*y=-4
-
Identical expressions
- (4x- one) nine -(x+ two) six = two
- (4x minus 1)9 minus (x plus 2)6 equally 2
- (4x minus one) nine minus (x plus two) six equally two
- 4x-19-x+26=2
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Similar expressions
- (4x-1)9+(x+2)6=2
- (4x+1)9-(x+2)6=2
- (4x-1)9-(x-2)6=2
(4x-1)9-(x+2)6=2 equation
The teacher will be very surprised to see your correct solution 😉
The solution
You have entered
[src]
(4*x - 1)*9 - (x + 2)*6 = 2
$$- 6 \left(x + 2\right) + 9 \left(4 x - 1\right) = 2$$
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:
$$30 x = 23$$
Divide both parts of the equation by 30
We get the answer: x = 23/30
(4*x-1)*9-(x+2)*6 = 2
Expand brackets in the left part
4*x*9-1*9-x*6-2*6 = 2
Looking for similar summands in the left part:
-21 + 30*x = 2
Move free summands (without x)
from left part to right part, we given:
$$30 x = 23$$
Divide both parts of the equation by 30
x = 23 / (30)
We get the answer: x = 23/30
Sum and product of roots
[src]
sum
23 -- 30
$$\frac{23}{30}$$
=
23 -- 30
$$\frac{23}{30}$$
product
23 -- 30
$$\frac{23}{30}$$
=
23 -- 30
$$\frac{23}{30}$$
23/30