Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation 2x=18-x
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Equation x^4=(2*x-3)^2
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Equation 9*x^2=54*x
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Equation cos(x)+sin(x)=0
- Express {x} in terms of y where:
- -18*x-1*y=-11
- 7*x-2*y=20
- -1*x-20*y=-17
- -2*x-14*y=7
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Identical expressions
- zero , five (8x+ one)= fifteen -(nine -4x)
- 0,5(8x plus 1) equally 15 minus (9 minus 4x)
- zero , five (8x plus one) equally fifteen minus (nine minus 4x)
- 0,58x+1=15-9-4x
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Similar expressions
- 0,5(8x+1)=15+(9-4x)
- 0,5(8x-1)=15-(9-4x)
- 0,5(8x+1)=15-(9+4x)
- 0,5*(8x+1)=1,5-(2-4x)
0,5(8x+1)=15-(9-4x) 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
Expand brackets in the right part
Looking for similar summands in the right part:
Move free summands (without x)
from left part to right part, we given:
$$4 x = 4 x + \frac{11}{2}$$
Move the summands with the unknown x
from the right part to the left part:
$$0 = \frac{11}{2}$$
This equation has no roots
(1/2)*(8*x+1) = 15-(9-4*x)
Expand brackets in the left part
1/28*x+1 = 15-(9-4*x)
Expand brackets in the right part
1/28*x+1 = 15-9+4*x
Looking for similar summands in the right part:
1/2 + 4*x = 6 + 4*x
Move free summands (without x)
from left part to right part, we given:
$$4 x = 4 x + \frac{11}{2}$$
Move the summands with the unknown x
from the right part to the left part:
$$0 = \frac{11}{2}$$
This equation has no roots