Mister Exam
Other calculators
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How to use it?
- Equation:
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Equation x^3=27
-
Equation x^4+2*x^2-8=0
-
Equation cos(x)=2/3
-
Equation (x-11)^4=(x+3)^4
- Express {x} in terms of y where:
- 6*x+17*y=3
- 1*x+4*y=20
- 20*x+7*y=-9
- -17*x+18*y=10
-
Identical expressions
- seventeen *x- eight = twenty *x+ seven
- 17 multiply by x minus 8 equally 20 multiply by x plus 7
- seventeen multiply by x minus eight equally twenty multiply by x plus seven
- 17x-8=20x+7
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Similar expressions
- 17x-8=20x+9
- 17x-8x+24=231
- 17*x+8=20*x+7
- 20x+7=17x-8
- 17*x-8=20*x-7
- 0,28=0.001+17*x^-8,11
17*x-8=20*x+7 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:
$$17 x = 20 x + 15$$
Move the summands with the unknown x
from the right part to the left part:
$$- 3 x = 15$$
Divide both parts of the equation by -3
We get the answer: x = -5
17*x-8 = 20*x+7
Move free summands (without x)
from left part to right part, we given:
$$17 x = 20 x + 15$$
Move the summands with the unknown x
from the right part to the left part:
$$- 3 x = 15$$
Divide both parts of the equation by -3
x = 15 / (-3)
We get the answer: x = -5
Sum and product of roots
[src]
sum
0 - 5
$$-5 + 0$$
=
-5
$$-5$$
product
1*-5
$$1 \left(-5\right)$$
=
-5
$$-5$$
-5
The graph