Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation 13/(x+6)=2
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Equation -x=17
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Equation x^2=18
- Equation (134545-x)+23=98
- Express {x} in terms of y where:
- 14*x+5*y=11
- 8*x-7*y=-1
- 20*x-5*y=-7
- -1*x+1*y=18
- Integral of d{x}:
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4x
- Sum of series:
- 4x
- Derivative of:
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4x
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Identical expressions
- two (x- one)+ two (x- seven)=4x
- 2(x minus 1) plus 2(x minus 7) equally 4x
- two (x minus one) plus two (x minus seven) equally 4x
- 2x-1+2x-7=4x
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Similar expressions
- 15*x^2-4*x-3=0
- -2*x*(2*x-1)+(2*x-7)^2=49
- 2(x-1)+2(x+7)=4x
- 2(x-1)-2(x-7)=4x
- 2(x+1)+2(x-7)=4x
2(x-1)+2(x-7)=4x equation
The teacher will be very surprised to see your correct solution 😉
The solution
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2*(x - 1) + 2*(x - 7) = 4*x
$$2 \left(x - 7\right) + 2 \left(x - 1\right) = 4 x$$
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:
$$4 x = 4 x + 16$$
Move the summands with the unknown x
from the right part to the left part:
$$0 = 16$$
This equation has no roots
2*(x-1)+2*(x-7) = 4*x
Expand brackets in the left part
2*x-2*1+2*x-2*7 = 4*x
Looking for similar summands in the left part:
-16 + 4*x = 4*x
Move free summands (without x)
from left part to right part, we given:
$$4 x = 4 x + 16$$
Move the summands with the unknown x
from the right part to the left part:
$$0 = 16$$
This equation has no roots