Mister Exam
Other calculators
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How to use it?
- Express {x} in terms of y where:
- -13*x-7*y=16
- -16*x+10*y=-11
- -2*x-15*y=-1
- -14*x+5*y=-1
- Equation:
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Equation 81*x^3+18*x^2+x=0
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Equation 6=8-5(7x-1)
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Equation 3x=28-x
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Equation 3x=2
- 4*x+7*y
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Identical expressions
- four *x+ seven *y= four
- 4 multiply by x plus 7 multiply by y equally 4
- four multiply by x plus seven multiply by y equally four
- 4x+7y=4
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Similar expressions
- 4*x-7*y=4
Express x in terms of y where 4*x+7*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:
$$4 x = 4 - 7 y$$
Divide both parts of the equation by 4
We get the answer: x = 1 - 7*y/4
4*x+7*y = 4
Looking for similar summands in the left part:
4*x + 7*y = 4
Move the summands with the other variables
from left part to right part, we given:
$$4 x = 4 - 7 y$$
Divide both parts of the equation by 4
x = 4 - 7*y / (4)
We get the answer: x = 1 - 7*y/4
Rapid solution
[src]
7*re(y) 7*I*im(y)
x1 = 1 - ------- - ---------
4 4
$$x_{1} = - \frac{7 \operatorname{re}{\left(y\right)}}{4} - \frac{7 i \operatorname{im}{\left(y\right)}}{4} + 1$$
x1 = -7*re(y)/4 - 7*i*im(y)/4 + 1