Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation x^2+x-4=0
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Equation x^4=(4x-21)^2
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Equation -2(x-4)=3+7x
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Equation cos(pi*(x-1)/3)=1/2
- Express {x} in terms of y where:
- -2*x-14*y=7
- 14*x+16*y=-3
- -17*x+13*y=-3
- 7*x+20*y=-17
- Graphing y =:
- 4x+5
- Derivative of:
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4x+5
- Integral of d{x}:
- 4x+5
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Identical expressions
- - nine * eight -9x=4x+ five
- minus 9 multiply by 8 minus 9x equally 4x plus 5
- minus nine multiply by eight minus 9x equally 4x plus five
- -98-9x=4x+5
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Similar expressions
- -9*(8-9*x)+4*x+5=0
- -9*(8-9x)=4x+5
- -9*8-9x=4x-5
- -2*x+4*x+5=2*x^2-7*x+2*x-3
- 9*8-9x=4x+5
- -9*8+9x=4x+5
- -9(8-9x)=4x+5x
-9*8-9x=4x+5 equation
The teacher will be very surprised to see your correct solution 😉
The solution
Detail solution
Given the linear equation:
Move free summands (without x)
from left part to right part, we given:
$$- 9 x = 4 x + 77$$
Move the summands with the unknown x
from the right part to the left part:
$$\left(-13\right) x = 77$$
Divide both parts of the equation by -13
We get the answer: x = -77/13
-9*8-9*x = 4*x+5
Move free summands (without x)
from left part to right part, we given:
$$- 9 x = 4 x + 77$$
Move the summands with the unknown x
from the right part to the left part:
$$\left(-13\right) x = 77$$
Divide both parts of the equation by -13
x = 77 / (-13)
We get the answer: x = -77/13
Sum and product of roots
[src]
sum
-77 ---- 13
$$- \frac{77}{13}$$
=
-77 ---- 13
$$- \frac{77}{13}$$
product
-77 ---- 13
$$- \frac{77}{13}$$
=
-77 ---- 13
$$- \frac{77}{13}$$
-77/13