Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation 4x+5=2x-7
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Equation x^2/(x+6)=1/2
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Equation 3-x=1+x
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Equation 80-x=9*5
- Express {x} in terms of y where:
- -6*x+1*y=-5
- -8*x+3*y=-4
- 12*x+1*y=15
- 20*x-16*y=7
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Identical expressions
- eight +7x=9x+ four
- 8 plus 7x equally 9x plus 4
- eight plus 7x equally 9x plus four
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Similar expressions
- 78+(7x-38)=x-14
- x^8+7*x^8=-8
- 8-7x=9x+4
- 25.6*ln(|-0.9*x-6.9|)+10.8*ln(|-0.9*x+4.37|)=58.73
- 8+7*x=0
- 8+7x=9x-4
8+7x=9x+4 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:
$$7 x = 9 x - 4$$
Move the summands with the unknown x
from the right part to the left part:
$$\left(-2\right) x = -4$$
Divide both parts of the equation by -2
We get the answer: x = 2
8+7*x = 9*x+4
Move free summands (without x)
from left part to right part, we given:
$$7 x = 9 x - 4$$
Move the summands with the unknown x
from the right part to the left part:
$$\left(-2\right) x = -4$$
Divide both parts of the equation by -2
x = -4 / (-2)
We get the answer: x = 2
The graph