7a+b+0c+3d=100

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Solution for 7a+b+0c+3d=100 equation:


Simplifying
7a + b + 0c + 3d = 100

Anything times zero is zero.
7a + b + 0c + 3d = 100

Reorder the terms:
0 + 7a + b + 3d = 100
Remove the zero:
7a + b + 3d = 100

Solving
7a + b + 3d = 100

Solving for variable 'a'.

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

Add '-1b' to each side of the equation.
7a + b + -1b + 3d = 100 + -1b

Combine like terms: b + -1b = 0
7a + 0 + 3d = 100 + -1b
7a + 3d = 100 + -1b

Add '-3d' to each side of the equation.
7a + 3d + -3d = 100 + -1b + -3d

Combine like terms: 3d + -3d = 0
7a + 0 = 100 + -1b + -3d
7a = 100 + -1b + -3d

Divide each side by '7'.
a = 14.28571429 + -0.1428571429b + -0.4285714286d

Simplifying
a = 14.28571429 + -0.1428571429b + -0.4285714286d

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