Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation cos(x)=sin(x)
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Equation x^2-5x-24=0
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Equation 4x-3(20-x)=10x-3(11+x)
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Equation k^2-2*k-3=0
- Express {x} in terms of y where:
- 14*x-16*y=-3
- 17*x-20*y=6
- 10*x-19*y=3
- -2*x-1*y=-8
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Identical expressions
- x- zero .3x= one thousand, nine hundred
- x minus 0.3x equally 1900
- x minus zero .3x equally one thousand, nine hundred
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Similar expressions
- x+0.3x=1900
- x-0.3*x=355
x-0.3x=1900 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
Looking for similar summands in the left part:
Divide both parts of the equation by 7/10
We get the answer: x = 19000/7
x-(3/10)*x = 1900
Expand brackets in the left part
x-3/10x = 1900
Looking for similar summands in the left part:
7*x/10 = 1900
Divide both parts of the equation by 7/10
x = 1900 / (7/10)
We get the answer: x = 19000/7
Sum and product of roots
[src]
sum
19000/7
$$\frac{19000}{7}$$
=
19000/7
$$\frac{19000}{7}$$
product
19000/7
$$\frac{19000}{7}$$
=
19000/7
$$\frac{19000}{7}$$
19000/7