Mister Exam
Other calculators
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How to use it?
- Express {x} in terms of y where:
- -15*x+18*y=0
- -18*x+9*y=4
- -6*x-2*y=7
- 6*x+10*y=-2
- Equation:
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Equation sin(x)=cos(x)
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Equation cos(x)=(-1/2)
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Equation (x+7)*(x-1)=0
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Equation e^x=2
- Limit of the function:
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-5
- -5
- Derivative of:
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-5
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Identical expressions
- - seven *x- four *y=- five
- minus 7 multiply by x minus 4 multiply by y equally minus 5
- minus seven multiply by x minus four multiply by y equally minus five
- -7x-4y=-5
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Similar expressions
- 7*x-4*y=-5
- -7*x+4*y=-5
- -7*x-4*y=+5
Express x in terms of y where -7*x-4*y=-5
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:
$$- 7 x = 4 y - 5$$
Divide both parts of the equation by -7
We get the answer: x = 5/7 - 4*y/7
-7*x-4*y = -5
Looking for similar summands in the left part:
-7*x - 4*y = -5
Move the summands with the other variables
from left part to right part, we given:
$$- 7 x = 4 y - 5$$
Divide both parts of the equation by -7
x = -5 + 4*y / (-7)
We get the answer: x = 5/7 - 4*y/7
Rapid solution
[src]
5 4*re(y) 4*I*im(y)
x1 = - - ------- - ---------
7 7 7
$$x_{1} = - \frac{4 \operatorname{re}{\left(y\right)}}{7} - \frac{4 i \operatorname{im}{\left(y\right)}}{7} + \frac{5}{7}$$
x1 = -4*re(y)/7 - 4*i*im(y)/7 + 5/7