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How to use it?
- Equation:
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Equation 2+3x=-2x-13
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Equation cos(x)=-(1/2)
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Equation |x^2-1|-|x-3|=7
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Equation 2*x^2+6*x+9=0
- Express {x} in terms of y where:
- -14*x-16*y=14
- 16*x-17*y=-9
- -16*x-20*y=6
- -1*x-7*y=5
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Identical expressions
- -x- two + three *(x- three)= three *(four -x)- three
- minus x minus 2 plus 3 multiply by (x minus 3) equally 3 multiply by (4 minus x) minus 3
- minus x minus two plus three multiply by (x minus three) equally three multiply by (four minus x) minus three
- -x-2+3(x-3)=3(4-x)-3
- -x-2+3x-3=34-x-3
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Similar expressions
- -x-2+3(x-3)-3=3(4-x)-3
- (x-3)^4-(x-3)^2-10=0
- -x-2-3*(x-3)=3*(4-x)-3
- (-x-2+3)(x-3)=3(4-x)-3
- -x+2+3*(x-3)=3*(4-x)-3
- x-2+3*(x-3)=3*(4-x)-3
- x-2+3(x-3)=3(4-x)-3
- -x-2+3*(x-3)=3*(4+x)-3
- -x-2+3*(x-3)=3*(4-x)+3
- -x-2+3*(x+3)=3*(4-x)-3
-x-2+3*(x-3)=3*(4-x)-3 equation
The teacher will be very surprised to see your correct solution 😉
The solution
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-x - 2 + 3*(x - 3) = 3*(4 - x) - 3
$$- x + 3 \left(x - 3\right) - 2 = 3 \cdot \left(4 - x\right) - 3$$
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:
$$2 x = 20 - 3 x$$
Move the summands with the unknown x
from the right part to the left part:
$$5 x = 20$$
Divide both parts of the equation by 5
We get the answer: x = 4
-x-2+3*(x-3) = 3*(4-x)-3
Expand brackets in the left part
-x-2+3*x-3*3 = 3*(4-x)-3
Expand brackets in the right part
-x-2+3*x-3*3 = 3*4-3*x-3
Looking for similar summands in the left part:
-11 + 2*x = 3*4-3*x-3
Looking for similar summands in the right part:
-11 + 2*x = 9 - 3*x
Move free summands (without x)
from left part to right part, we given:
$$2 x = 20 - 3 x$$
Move the summands with the unknown x
from the right part to the left part:
$$5 x = 20$$
Divide both parts of the equation by 5
x = 20 / (5)
We get the answer: x = 4
The graph