Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation (x^2+3)/(x^2+1)=2
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Equation -4x+9=-19
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Equation -4x+3=2x
- Equation 3*x^3-27*x=0
- Express {x} in terms of y where:
- 19*x-18*y=15
- 13*x-13*y=-4
- 19*x-20*y=-12
- 12*x+7*y=15
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Identical expressions
- nineteen *(y- nine)= three *(y- eight)
- 19 multiply by (y minus 9) equally 3 multiply by (y minus 8)
- nineteen multiply by (y minus nine) equally three multiply by (y minus eight)
- 19(y-9)=3(y-8)
- 19y-9=3y-8
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Similar expressions
- 7+(3y-8)=-8
- 13*y^2-14/sqrt(13)*y-8/sqrt(13)*x+4=0
- 19*(y-9)=3*(y+8)
- 9(2x-3y)-8(y-x)=0
- 19*(y+9)=3*(y-8)
- -3*y-8=2*y+7
19*(y-9)=3*(y-8) 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
Move free summands (without y)
from left part to right part, we given:
$$19 y = 3 y + 147$$
Move the summands with the unknown y
from the right part to the left part:
$$16 y = 147$$
Divide both parts of the equation by 16
We get the answer: y = 147/16
19*(y-9) = 3*(y-8)
Expand brackets in the left part
19*y-19*9 = 3*(y-8)
Expand brackets in the right part
19*y-19*9 = 3*y-3*8
Move free summands (without y)
from left part to right part, we given:
$$19 y = 3 y + 147$$
Move the summands with the unknown y
from the right part to the left part:
$$16 y = 147$$
Divide both parts of the equation by 16
y = 147 / (16)
We get the answer: y = 147/16
Sum and product of roots
[src]
sum
147 --- 16
$$\frac{147}{16}$$
=
147 --- 16
$$\frac{147}{16}$$
product
147 --- 16
$$\frac{147}{16}$$
=
147 --- 16
$$\frac{147}{16}$$
147/16