21x-2+16x-2=70

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Solution for 21x-2+16x-2=70 equation:


Simplifying
21x + -2 + 16x + -2 = 70

Reorder the terms:
-2 + -2 + 21x + 16x = 70

Combine like terms: -2 + -2 = -4
-4 + 21x + 16x = 70

Combine like terms: 21x + 16x = 37x
-4 + 37x = 70

Solving
-4 + 37x = 70

Solving for variable 'x'.

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

Add '4' to each side of the equation.
-4 + 4 + 37x = 70 + 4

Combine like terms: -4 + 4 = 0
0 + 37x = 70 + 4
37x = 70 + 4

Combine like terms: 70 + 4 = 74
37x = 74

Divide each side by '37'.
x = 2

Simplifying
x = 2

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