Mister Exam
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How to use it?
- Express {x} in terms of y where:
- 4*x+3*y=-15
- -6*x+1*y=14
- 1*x+7*y=8
- 20*x-4*y=-7
- Equation:
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Equation x-6/x=-1
- Equation 1-y^2=2+x
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Equation cos(x)=2
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Equation 10x+9=7x
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Identical expressions
- one *x+ seven *y= eight
- 1 multiply by x plus 7 multiply by y equally 8
- one multiply by x plus seven multiply by y equally eight
- 1x+7y=8
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Similar expressions
- 1*x-7*y=8
Express x in terms of y where 1*x+7*y=8
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:
$$x = 8 - 7 y$$
We get the answer: x = 8 - 7*y
1*x+7*y = 8
Looking for similar summands in the left part:
x + 7*y = 8
Move the summands with the other variables
from left part to right part, we given:
$$x = 8 - 7 y$$
We get the answer: x = 8 - 7*y
Rapid solution
[src]
x1 = 8 - 7*re(y) - 7*I*im(y)
$$x_{1} = - 7 \operatorname{re}{\left(y\right)} - 7 i \operatorname{im}{\left(y\right)} + 8$$
x1 = -7*re(y) - 7*i*im(y) + 8