Mister Exam
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How to use it?
- Equation:
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Equation 12-x=x
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Equation 4x+5=2x-7
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Equation 3*x^2-9=0
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Equation x^2-x+1=0
- Express {x} in terms of y where:
- 20*x+9*y=17
- 11*x-11*y=-17
- -17*x-12*y=-9
- -6*x+1*y=-5
- Derivative of:
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4*x+5
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Identical expressions
- four *x+ five = two *x- seven
- 4 multiply by x plus 5 equally 2 multiply by x minus 7
- four multiply by x plus five equally two multiply by x minus seven
- 4x+5=2x-7
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Similar expressions
- 4x+5=2x-3
- 4*x+5=2*x+7
- (-2x+1)*(-2x-7)=0
- 1/2x-1/3(9/4x+51)=2x+-1/2x+1
- 2x-7=17
- 4x+5=2x-7
- 4*x-5=2*x-7
4*x+5=2*x-7 equation
The teacher will be very surprised to see your correct solution 😉
The solution
Detail solution
Given the linear equation:
Move free summands (without x)
from left part to right part, we given:
$$4 x = 2 x - 12$$
Move the summands with the unknown x
from the right part to the left part:
$$2 x = -12$$
Divide both parts of the equation by 2
We get the answer: x = -6
4*x+5 = 2*x-7
Move free summands (without x)
from left part to right part, we given:
$$4 x = 2 x - 12$$
Move the summands with the unknown x
from the right part to the left part:
$$2 x = -12$$
Divide both parts of the equation by 2
x = -12 / (2)
We get the answer: x = -6
The graph