Mister Exam
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How to use it?
- Express {x} in terms of y where:
- -4*x+7*y=-16
- -1*x-20*y=1
- 14*x-10*y=-4
- -11*x+16*y=3
- Equation:
- Equation ax=b
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Equation x^2-x+8=0
- Equation x^2+y^2=1
-
Equation x^2-8x+16=0
- Derivative of:
- -4
- Integral of d{x}:
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-4
- Limit of the function:
- -4
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Identical expressions
- fourteen *x- ten *y=- four
- 14 multiply by x minus 10 multiply by y equally minus 4
- fourteen multiply by x minus ten multiply by y equally minus four
- 14x-10y=-4
-
Similar expressions
- 14*x+10*y=-4
- 14*x-10*y=+4
Express x in terms of y where 14*x-10*y=-4
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:
$$14 x = 10 y - 4$$
Divide both parts of the equation by 14
We get the answer: x = -2/7 + 5*y/7
14*x-10*y = -4
Looking for similar summands in the left part:
-10*y + 14*x = -4
Move the summands with the other variables
from left part to right part, we given:
$$14 x = 10 y - 4$$
Divide both parts of the equation by 14
x = -4 + 10*y / (14)
We get the answer: x = -2/7 + 5*y/7
Rapid solution
[src]
2 5*re(y) 5*I*im(y)
x1 = - - + ------- + ---------
7 7 7
$$x_{1} = \frac{5 \operatorname{re}{\left(y\right)}}{7} + \frac{5 i \operatorname{im}{\left(y\right)}}{7} - \frac{2}{7}$$
x1 = 5*re(y)/7 + 5*i*im(y)/7 - 2/7