Mister Exam
Other calculators
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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:
-
Equation sin(x)=1
-
Equation x-6/x=-1
- Equation 1-y^2=2+x
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Equation 1-7*(4+2*x)=-9-4*x
- 4*x+3*y
- Derivative of:
- -15
- Sum of series:
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-15
- Limit of the function:
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-15
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Identical expressions
- four *x+ three *y=- fifteen
- 4 multiply by x plus 3 multiply by y equally minus 15
- four multiply by x plus three multiply by y equally minus fifteen
- 4x+3y=-15
-
Similar expressions
- 4*x-3*y=-15
- 4*x+3*y=+15
Express x in terms of y where 4*x+3*y=-15
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:
$$4 x = - 3 y - 15$$
Divide both parts of the equation by 4
We get the answer: x = -15/4 - 3*y/4
4*x+3*y = -15
Looking for similar summands in the left part:
3*y + 4*x = -15
Move the summands with the other variables
from left part to right part, we given:
$$4 x = - 3 y - 15$$
Divide both parts of the equation by 4
x = -15 - 3*y / (4)
We get the answer: x = -15/4 - 3*y/4
Rapid solution
[src]
15 3*re(y) 3*I*im(y)
x1 = - -- - ------- - ---------
4 4 4
$$x_{1} = - \frac{3 \operatorname{re}{\left(y\right)}}{4} - \frac{3 i \operatorname{im}{\left(y\right)}}{4} - \frac{15}{4}$$
x1 = -3*re(y)/4 - 3*i*im(y)/4 - 15/4