7x+4+9x+8=42

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Solution for 7x+4+9x+8=42 equation:


Simplifying
7x + 4 + 9x + 8 = 42

Reorder the terms:
4 + 8 + 7x + 9x = 42

Combine like terms: 4 + 8 = 12
12 + 7x + 9x = 42

Combine like terms: 7x + 9x = 16x
12 + 16x = 42

Solving
12 + 16x = 42

Solving for variable 'x'.

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

Add '-12' to each side of the equation.
12 + -12 + 16x = 42 + -12

Combine like terms: 12 + -12 = 0
0 + 16x = 42 + -12
16x = 42 + -12

Combine like terms: 42 + -12 = 30
16x = 30

Divide each side by '16'.
x = 1.875

Simplifying
x = 1.875

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