Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation (x^2+3)/(x^2+1)=2
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Equation -4x+9=-19
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Equation -4x+3=2x
- Equation 3*x^3-27*x=0
- Express {x} in terms of y where:
- 13*x-13*y=-4
- 19*x-20*y=-12
- 12*x+7*y=15
- -2*x-9*y=3
- Sum of series:
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17
- Derivative of:
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17
- Limit of the function:
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17
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Identical expressions
- four (x- one)-11x= seventeen
- 4(x minus 1) minus 11x equally 17
- four (x minus one) minus 11x equally seventeen
- 4x-1-11x=17
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Similar expressions
- 4(x-1)+11x=17
- 4(x+1)-11x=17
4(x-1)-11x=17 equation
The teacher will be very surprised to see your correct solution 😉
The solution
Detail solution
Given the linear equation:
Expand brackets in the left part
Looking for similar summands in the left part:
Move free summands (without x)
from left part to right part, we given:
$$- 7 x = 21$$
Divide both parts of the equation by -7
We get the answer: x = -3
4*(x-1)-11*x = 17
Expand brackets in the left part
4*x-4*1-11*x = 17
Looking for similar summands in the left part:
-4 - 7*x = 17
Move free summands (without x)
from left part to right part, we given:
$$- 7 x = 21$$
Divide both parts of the equation by -7
x = 21 / (-7)
We get the answer: x = -3