Mister Exam
Other calculators
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How to use it?
- Express {x} in terms of y where:
- -2*x+4*y=3
- 3*x-17*y=-6
- 2*x+10*y=-10
- 3*x-2*y=-9
- Equation:
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Equation (x+7)*(x-1)=0
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Equation x/3+x/4=-21
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Equation sin(x)=0
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Equation x^3-9*x=0
- Sum of series:
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-1
- Derivative of:
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-1
- Integral of d{x}:
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-1
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Identical expressions
- - seven *x- nine *y=- one
- minus 7 multiply by x minus 9 multiply by y equally minus 1
- minus seven multiply by x minus nine multiply by y equally minus one
- -7x-9y=-1
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Similar expressions
- -7*x+9*y=-1
- 7*x-9*y=-1
- -7*x-9*y=+1
Express x in terms of y where -7*x-9*y=-1
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:
$$- 7 x = 9 y - 1$$
Divide both parts of the equation by -7
We get the answer: x = 1/7 - 9*y/7
-7*x-9*y = -1
Looking for similar summands in the left part:
-9*y - 7*x = -1
Move the summands with the other variables
from left part to right part, we given:
$$- 7 x = 9 y - 1$$
Divide both parts of the equation by -7
x = -1 + 9*y / (-7)
We get the answer: x = 1/7 - 9*y/7
Rapid solution
[src]
1 9*re(y) 9*I*im(y)
x1 = - - ------- - ---------
7 7 7
$$x_{1} = - \frac{9 \operatorname{re}{\left(y\right)}}{7} - \frac{9 i \operatorname{im}{\left(y\right)}}{7} + \frac{1}{7}$$
x1 = -9*re(y)/7 - 9*i*im(y)/7 + 1/7