.3=.02(x-3)+.05(x+3)

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Solution for .3=.02(x-3)+.05(x+3) equation:


Simplifying
0.3 = 0.02(x + -3) + 0.05(x + 3)

Reorder the terms:
0.3 = 0.02(-3 + x) + 0.05(x + 3)
0.3 = (-3 * 0.02 + x * 0.02) + 0.05(x + 3)
0.3 = (-0.06 + 0.02x) + 0.05(x + 3)

Reorder the terms:
0.3 = -0.06 + 0.02x + 0.05(3 + x)
0.3 = -0.06 + 0.02x + (3 * 0.05 + x * 0.05)
0.3 = -0.06 + 0.02x + (0.15 + 0.05x)

Reorder the terms:
0.3 = -0.06 + 0.15 + 0.02x + 0.05x

Combine like terms: -0.06 + 0.15 = 0.09
0.3 = 0.09 + 0.02x + 0.05x

Combine like terms: 0.02x + 0.05x = 0.07x
0.3 = 0.09 + 0.07x

Solving
0.3 = 0.09 + 0.07x

Solving for variable 'x'.

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

Add '-0.07x' to each side of the equation.
0.3 + -0.07x = 0.09 + 0.07x + -0.07x

Combine like terms: 0.07x + -0.07x = 0.00
0.3 + -0.07x = 0.09 + 0.00
0.3 + -0.07x = 0.09

Add '-0.3' to each side of the equation.
0.3 + -0.3 + -0.07x = 0.09 + -0.3

Combine like terms: 0.3 + -0.3 = 0.0
0.0 + -0.07x = 0.09 + -0.3
-0.07x = 0.09 + -0.3

Combine like terms: 0.09 + -0.3 = -0.21
-0.07x = -0.21

Divide each side by '-0.07'.
x = 3

Simplifying
x = 3

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