Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation 2x=0
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Equation -5*x=25
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Equation 5*sin(x)+cos(x)=5
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Equation 25*x^2=16
- Express {x} in terms of y where:
- -11*x-1*y=12
- 6*x+4*y=15
- 3*x+19*y=4
- 8*x-9*y=-1
- Sum of series:
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800
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Identical expressions
- 30x+ twenty (twenty-eight -x)+ fifteen *(twenty-eight -(x+(twenty-eight -x)))= eight hundred
- 30x plus 20(28 minus x) plus 15 multiply by (28 minus (x plus (28 minus x))) equally 800
- 30x plus twenty (twenty minus eight minus x) plus fifteen multiply by (twenty minus eight minus (x plus (twenty minus eight minus x))) equally eight hundred
- 30x+20(28-x)+15(28-(x+(28-x)))=800
- 30x+2028-x+1528-x+28-x=800
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Similar expressions
- 30x+20(28-x)+15*(28-(x+(28+x)))=800
- 30x+20(28-x)+15*(28-(x-(28-x)))=800
- 30x-20(28-x)+15*(28-(x+(28-x)))=800
- 30x+20(28-x)-15*(28-(x+(28-x)))=800
- 30x+20(28+x)+15*(28-(x+(28-x)))=800
- 30x+20(28-x)+15*(28+(x+(28-x)))=800
30x+20(28-x)+15*(28-(x+(28-x)))=800 equation
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The solution
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30*x + 20*(28 - x) + 15*(28 + -x + -28 + x) = 800
$$\left(30 x + 20 \left(28 - x\right)\right) + 15 \left(\left(- x + \left(x - 28\right)\right) + 28\right) = 800$$
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:
$$10 x = 240$$
Divide both parts of the equation by 10
We get the answer: x = 24
30*x+20*(28-x)+15*(28-(x+(28-x))) = 800
Expand brackets in the left part
30*x+20*28-20*x+15*28+15*x+15*28-15*x)) = 800
Looking for similar summands in the left part:
560 + 10*x = 800
Move free summands (without x)
from left part to right part, we given:
$$10 x = 240$$
Divide both parts of the equation by 10
x = 240 / (10)
We get the answer: x = 24