Mister Exam
Other calculators
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How to use it?
- Express {x} in terms of y where:
- -8*x+3*y=-4
- -17*x-8*y=7
- -20*x+14*y=16
- 8*x-12*y=9
- Equation:
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Equation 25*x^2=16
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Equation x^2-18=7*x
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Equation x+5=7
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Equation x^2+10*x+16=0
- Sum of series:
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-8
- Limit of the function:
- -8
- Integral of d{x}:
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-8
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Identical expressions
- seven *x- seven *y=- eight
- 7 multiply by x minus 7 multiply by y equally minus 8
- seven multiply by x minus seven multiply by y equally minus eight
- 7x-7y=-8
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Similar expressions
- 7*x-7*y=+8
- 7*x+7*y=-8
Express x in terms of y where 7*x-7*y=-8
The teacher will be very surprised to see your correct solution 😉
The solution
Detail solution
Given the linear equation:
Looking for similar summands in the left part:
Move the summands with the other variables
from left part to right part, we given:
$$7 x = 7 y - 8$$
Divide both parts of the equation by 7
We get the answer: x = -8/7 + y
7*x-7*y = -8
Looking for similar summands in the left part:
-7*y + 7*x = -8
Move the summands with the other variables
from left part to right part, we given:
$$7 x = 7 y - 8$$
Divide both parts of the equation by 7
x = -8 + 7*y / (7)
We get the answer: x = -8/7 + y
Rapid solution
[src]
x1 = -8/7 + I*im(y) + re(y)
$$x_{1} = \operatorname{re}{\left(y\right)} + i \operatorname{im}{\left(y\right)} - \frac{8}{7}$$
x1 = re(y) + i*im(y) - 8/7