Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation -7x=4
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Equation x^2-6=0
- Equation x^2-x-90=0
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Equation -9x=36
- Express {x} in terms of y where:
- -6*x-11*y=-20
- -15*x+7*y=1
- -10*x+4*y=3
- -8*x-16*y=-1
- Derivative of:
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-x
- Integral of d{x}:
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-x
- Graphing y =:
- -x
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Identical expressions
- -x= six - seven (x- three)
- minus x equally 6 minus 7(x minus 3)
- minus x equally six minus seven (x minus three)
- -x=6-7x-3
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Similar expressions
- x=6-7(x-3)
- -x=6-7(x+3)
- -x=6+7(x-3)
-x=6-7(x-3) equation
The teacher will be very surprised to see your correct solution 😉
The solution
Detail solution
Given the linear equation:
Expand brackets in the right part
Looking for similar summands in the right part:
Move the summands with the unknown x
from the right part to the left part:
$$6 x = 27$$
Divide both parts of the equation by 6
We get the answer: x = 9/2
-x = 6-7*(x-3)
Expand brackets in the right part
-x = 6-7*x+7*3
Looking for similar summands in the right part:
-x = 27 - 7*x
Move the summands with the unknown x
from the right part to the left part:
$$6 x = 27$$
Divide both parts of the equation by 6
x = 27 / (6)
We get the answer: x = 9/2
Sum and product of roots
[src]
sum
9/2
$$\frac{9}{2}$$
=
9/2
$$\frac{9}{2}$$
product
9/2
$$\frac{9}{2}$$
=
9/2
$$\frac{9}{2}$$
9/2
The graph