Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation x/9+x=-10/3
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Equation z^4+1=0
-
Equation sin(x)+cos(x)=-1
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Equation -3x-9=2x
- Express {x} in terms of y where:
- 18*x-8*y=-2
- 12*x+8*y=18
- -11*x+9*y=-20
- 7*x-6*y=-10
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Identical expressions
- -x- four + five (x+ three)= five (- one -x)- two
- minus x minus 4 plus 5(x plus 3) equally 5( minus 1 minus x) minus 2
- minus x minus four plus five (x plus three) equally five ( minus one minus x) minus two
- -x-4+5x+3=5-1-x-2
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Similar expressions
- -x-4+5*(x+3)-5=5*(-1-x)-2
- -x-4-5(x+3)=5(-1-x)-2
- -x-4+5(x+3)=5(1-x)-2
- -x-4+5(x-3)=(5-1-x)-2
- -x+4+5(x+3)=5(-1-x)-2
- -x-4+5(x+3)=5(-1-x)+2
- -x-4+5*(x+3)-5*(-1-x)-2=0
- -x-4+5*(x+3)=5*(-1-x)-2
- -x-4+5(x-3)=5(-1-x)-2
- -x-4+5*(x-3)=5*(-1-x)-2
- -x-4+5(x+3)=5(-1+x)-2
- x-4+5(x+3)=5(-1-x)-2
-x-4+5(x+3)=5(-1-x)-2 equation
The teacher will be very surprised to see your correct solution 😉
The solution
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-x - 4 + 5*(x + 3) = 5*(-1 - x) - 2
$$\left(- x - 4\right) + 5 \left(x + 3\right) = 5 \left(- x - 1\right) - 2$$
Detail solution
Given the linear equation:
Expand brackets in the left part
Expand brackets in the right part
Looking for similar summands in the left part:
Looking for similar summands in the right part:
Move free summands (without x)
from left part to right part, we given:
$$4 x = - 5 x - 18$$
Move the summands with the unknown x
from the right part to the left part:
$$9 x = -18$$
Divide both parts of the equation by 9
We get the answer: x = -2
-x-4+5*(x+3) = 5*(-1-x)-2
Expand brackets in the left part
-x-4+5*x+5*3 = 5*(-1-x)-2
Expand brackets in the right part
-x-4+5*x+5*3 = -5*1-5*x-2
Looking for similar summands in the left part:
11 + 4*x = -5*1-5*x-2
Looking for similar summands in the right part:
11 + 4*x = -7 - 5*x
Move free summands (without x)
from left part to right part, we given:
$$4 x = - 5 x - 18$$
Move the summands with the unknown x
from the right part to the left part:
$$9 x = -18$$
Divide both parts of the equation by 9
x = -18 / (9)
We get the answer: x = -2
The graph