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(10x-6)-(6x-7)=21

(10x-6)-(6x-7)=21 equation

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Numerical solution:

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The solution

You have entered [src]
10*x - 6 - (6*x - 7) = 21
$$10 x - \left(6 x - 7\right) - 6 = 21$$
Detail solution
Given the linear equation:
(10*x-6)-(6*x-7) = 21

Expand brackets in the left part
10*x-6-6*x+7 = 21

Looking for similar summands in the left part:
1 + 4*x = 21

Move free summands (without x)
from left part to right part, we given:
$$4 x = 20$$
Divide both parts of the equation by 4
x = 20 / (4)

We get the answer: x = 5
The graph
Sum and product of roots [src]
sum
0 + 5
$$0 + 5$$
=
5
$$5$$
product
1*5
$$1 \cdot 5$$
=
5
$$5$$
5
Rapid solution [src]
x1 = 5
$$x_{1} = 5$$
Numerical answer [src]
x1 = 5.0
x1 = 5.0
The graph
(10x-6)-(6x-7)=21 equation