Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation -20*(x-13)=-220
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Equation x^2-10x+24=0
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Equation 8*x=2
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Equation -sin(x)=0
- Express {x} in terms of y where:
- 8*x-13*y=-12
- 2*x+18*y=20
- -10*x+13*y=5
- 16*x-15*y=4
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Identical expressions
- - five (x- seven)= thirty -(2x+ one)
- minus 5(x minus 7) equally 30 minus (2x plus 1)
- minus five (x minus seven) equally thirty minus (2x plus one)
- -5x-7=30-2x+1
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Similar expressions
- 4x²-5x-7=0
- -5(x-7)=30+(2x+1)
- -5*(z-7)=30-(2*x+1)
- -2x-25x=-5x-7
- -5(x+7)=30-(2x+1)
- 5(x-7)=30-(2x+1)
- (x-5)*((x-7)/3)^2+(x-5)^3-2*((x-7)/3)^2-64=0
- -5(x-7)=30-(2x-1)
- 4x+5=-5x-7
-5(x-7)=30-(2x+1) 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:
Move the summands with the unknown x
from the right part to the left part:
Divide both parts of the equation by -3
We get the answer: x = 2
-5*(x-7) = 30-(2*x+1)
Expand brackets in the left part
-5*x+5*7 = 30-(2*x+1)
Expand brackets in the right part
-5*x+5*7 = 30-2*x-1
Looking for similar summands in the right part:
35 - 5*x = 29 - 2*x
Move free summands (without x)
from left part to right part, we given:
Move the summands with the unknown x
from the right part to the left part:
Divide both parts of the equation by -3
x = -6 / (-3)
We get the answer: x = 2