Mister Exam
Other calculators
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How to use it?
- Express {x} in terms of y where:
- -2*x-7*y=19
- -7*x-11*y=4
- -17*x-7*y=16
- -10*x+1*y=-11
- Equation:
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Equation cos(x)-1=0
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Equation (5*x+4)/2+3=9*x/4
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Equation 7*x^3-28*x=0
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Equation 4x+9=5(2x-7)-6x
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Identical expressions
- - seven *x+ eleven *y= four
- minus 7 multiply by x plus 11 multiply by y equally 4
- minus seven multiply by x plus eleven multiply by y equally four
- -7x+11y=4
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Similar expressions
- 7*x+11*y=4
- -7*x-11*y=4
Express x in terms of y where -7*x+11*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:
$$- 7 x = 4 - 11 y$$
Divide both parts of the equation by -7
We get the answer: x = -4/7 + 11*y/7
-7*x+11*y = 4
Looking for similar summands in the left part:
-7*x + 11*y = 4
Move the summands with the other variables
from left part to right part, we given:
$$- 7 x = 4 - 11 y$$
Divide both parts of the equation by -7
x = 4 - 11*y / (-7)
We get the answer: x = -4/7 + 11*y/7
Rapid solution
[src]
4 11*re(y) 11*I*im(y)
x1 = - - + -------- + ----------
7 7 7
$$x_{1} = \frac{11 \operatorname{re}{\left(y\right)}}{7} + \frac{11 i \operatorname{im}{\left(y\right)}}{7} - \frac{4}{7}$$
x1 = 11*re(y)/7 + 11*i*im(y)/7 - 4/7