Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation -x=2
- Equation x+y=4
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Equation x^2-8x=0
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Equation 4x+12=3x+8
- Express {x} in terms of y where:
- -16*x-10*y=4
- -4*x+4*y=-9
- 10*x-6*y=9
- -3*x-20*y=-13
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Identical expressions
- two (eight -x)+ eight = four (3x- one)
- 2(8 minus x) plus 8 equally 4(3x minus 1)
- two (eight minus x) plus eight equally four (3x minus one)
- 28-x+8=43x-1
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Similar expressions
- 2(8+x)+8=4(3x-1)
- 2(8-x)-8=4(3x-1)
- 7-4*(3x-1)=5(1-2x)
- (x+4)(3x-12)=0
- log(4*3^(x-1)-1)/log(3)=2*x-1
- 2(8-x)+8=4(3x+1)
2(8-x)+8=4(3x-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 left 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 -14
We get the answer: x = 2
2*(8-x)+8 = 4*(3*x-1)
Expand brackets in the left part
2*8-2*x+8 = 4*(3*x-1)
Expand brackets in the right part
2*8-2*x+8 = 4*3*x-4*1
Looking for similar summands in the left part:
24 - 2*x = 4*3*x-4*1
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 -14
x = -28 / (-14)
We get the answer: x = 2