7x-(x+4)-(2x+1)=10

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Solution for 7x-(x+4)-(2x+1)=10 equation:


Simplifying
7x + -1(x + 4) + -1(2x + 1) = 10

Reorder the terms:
7x + -1(4 + x) + -1(2x + 1) = 10
7x + (4 * -1 + x * -1) + -1(2x + 1) = 10
7x + (-4 + -1x) + -1(2x + 1) = 10

Reorder the terms:
7x + -4 + -1x + -1(1 + 2x) = 10
7x + -4 + -1x + (1 * -1 + 2x * -1) = 10
7x + -4 + -1x + (-1 + -2x) = 10

Reorder the terms:
-4 + -1 + 7x + -1x + -2x = 10

Combine like terms: -4 + -1 = -5
-5 + 7x + -1x + -2x = 10

Combine like terms: 7x + -1x = 6x
-5 + 6x + -2x = 10

Combine like terms: 6x + -2x = 4x
-5 + 4x = 10

Solving
-5 + 4x = 10

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '5' to each side of the equation.
-5 + 5 + 4x = 10 + 5

Combine like terms: -5 + 5 = 0
0 + 4x = 10 + 5
4x = 10 + 5

Combine like terms: 10 + 5 = 15
4x = 15

Divide each side by '4'.
x = 3.75

Simplifying
x = 3.75

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