7(s+3)=4(s-10)+13

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Solution for 7(s+3)=4(s-10)+13 equation:


Simplifying
7(s + 3) = 4(s + -10) + 13

Reorder the terms:
7(3 + s) = 4(s + -10) + 13
(3 * 7 + s * 7) = 4(s + -10) + 13
(21 + 7s) = 4(s + -10) + 13

Reorder the terms:
21 + 7s = 4(-10 + s) + 13
21 + 7s = (-10 * 4 + s * 4) + 13
21 + 7s = (-40 + 4s) + 13

Reorder the terms:
21 + 7s = -40 + 13 + 4s

Combine like terms: -40 + 13 = -27
21 + 7s = -27 + 4s

Solving
21 + 7s = -27 + 4s

Solving for variable 's'.

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

Add '-4s' to each side of the equation.
21 + 7s + -4s = -27 + 4s + -4s

Combine like terms: 7s + -4s = 3s
21 + 3s = -27 + 4s + -4s

Combine like terms: 4s + -4s = 0
21 + 3s = -27 + 0
21 + 3s = -27

Add '-21' to each side of the equation.
21 + -21 + 3s = -27 + -21

Combine like terms: 21 + -21 = 0
0 + 3s = -27 + -21
3s = -27 + -21

Combine like terms: -27 + -21 = -48
3s = -48

Divide each side by '3'.
s = -16

Simplifying
s = -16

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