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Other calculators
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How to use it?
- Equation:
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Equation 5*x^2=35*x
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Equation 10x-20=5x
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Equation x^2+7=0
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Equation 68807*x%=750
- Express {x} in terms of y where:
- 8*x-16*y=14
- 15*x-3*y=19
- 11*x+8*y=-16
- -11*x-1*y=12
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Identical expressions
- nine (two -4x)= seven (nine -8x)
- 9(2 minus 4x) equally 7(9 minus 8x)
- nine (two minus 4x) equally seven (nine minus 8x)
- 92-4x=79-8x
-
Similar expressions
- 3.8x-1.2*(5-2x)=2.6*(x-3)-0.9*(2-4x)
- 9(2+4x)=7(9-8x)
- -10-7*(9-8*x)=-x-3
- 9(2-4x)=7(9+8x)
9(2-4x)=7(9-8x) equation
The teacher will be very surprised to see your correct solution 😉
The solution
You have entered
[src]
9*(2 - 4*x) = 7*(9 - 8*x)
$$9 \left(2 - 4 x\right) = 7 \left(9 - 8 x\right)$$
Detail solution
Given the linear equation:
Expand brackets in the left part
Expand brackets in the right part
Move free summands (without x)
from left part to right part, we given:
$$- 36 x = 45 - 56 x$$
Move the summands with the unknown x
from the right part to the left part:
$$20 x = 45$$
Divide both parts of the equation by 20
We get the answer: x = 9/4
9*(2-4*x) = 7*(9-8*x)
Expand brackets in the left part
9*2-9*4*x = 7*(9-8*x)
Expand brackets in the right part
9*2-9*4*x = 7*9-7*8*x
Move free summands (without x)
from left part to right part, we given:
$$- 36 x = 45 - 56 x$$
Move the summands with the unknown x
from the right part to the left part:
$$20 x = 45$$
Divide both parts of the equation by 20
x = 45 / (20)
We get the answer: x = 9/4
Sum and product of roots
[src]
sum
9/4
$$\frac{9}{4}$$
=
9/4
$$\frac{9}{4}$$
product
9/4
$$\frac{9}{4}$$
=
9/4
$$\frac{9}{4}$$
9/4