Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation x^2+x=12
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Equation 3x-2(3x-2)=19
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Equation x^4=(x-56)^2
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Equation (-2x+1)*(-2x-7)=0
- Express {x} in terms of y where:
- -7*x-13*y=-12
- 8*x+1*y=4
- 20*x-16*y=7
- -3*x+19*y=16
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Identical expressions
- x- two (five -x)= five
- x minus 2(5 minus x) equally 5
- x minus two (five minus x) equally five
- x-25-x=5
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Similar expressions
- x+2(5-x)=5
- x-2(5+x)=5
x-2(5-x)=5 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:
$$3 x = 15$$
Divide both parts of the equation by 3
We get the answer: x = 5
x-2*(5-x) = 5
Expand brackets in the left part
x-2*5+2*x = 5
Looking for similar summands in the left part:
-10 + 3*x = 5
Move free summands (without x)
from left part to right part, we given:
$$3 x = 15$$
Divide both parts of the equation by 3
x = 15 / (3)
We get the answer: x = 5