Mister Exam
Other calculators
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How to use it?
- Express {x} in terms of y where:
- 4*x+8*y=7
- -14*x+5*y=3
- 13*x-18*y=-17
- 4*x+18*y=-7
- Equation:
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Equation x/4+13=x+1
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Equation 4(x-8)=-5
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Equation 5(x-2)^2=-6x-44
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Equation 2^x=5
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Identical expressions
- four *x+ eight *y= seven
- 4 multiply by x plus 8 multiply by y equally 7
- four multiply by x plus eight multiply by y equally seven
- 4x+8y=7
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Similar expressions
- 4*x-8*y=7
Express x in terms of y where 4*x+8*y=7
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:
$$4 x = 7 - 8 y$$
Divide both parts of the equation by 4
We get the answer: x = 7/4 - 2*y
4*x+8*y = 7
Looking for similar summands in the left part:
4*x + 8*y = 7
Move the summands with the other variables
from left part to right part, we given:
$$4 x = 7 - 8 y$$
Divide both parts of the equation by 4
x = 7 - 8*y / (4)
We get the answer: x = 7/4 - 2*y
Rapid solution
[src]
x1 = 7/4 - 2*re(y) - 2*I*im(y)
$$x_{1} = - 2 \operatorname{re}{\left(y\right)} - 2 i \operatorname{im}{\left(y\right)} + \frac{7}{4}$$
x1 = -2*re(y) - 2*i*im(y) + 7/4