4a+3a+7=42

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Solution for 4a+3a+7=42 equation: 


Simplifying
4a + 3a + 7 = 42

Reorder the terms:
7 + 4a + 3a = 42

Combine like terms: 4a + 3a = 7a
7 + 7a = 42

Solving
7 + 7a = 42

Solving for variable 'a'.

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

Add '-7' to each side of the equation.
7 + -7 + 7a = 42 + -7

Combine like terms: 7 + -7 = 0
0 + 7a = 42 + -7
7a = 42 + -7

Combine like terms: 42 + -7 = 35
7a = 35

Divide each side by '7'.
a = 5

Simplifying
a = 5

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