70(0.06)+x(0.09)=(70+x)0.07

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Solution for 70(0.06)+x(0.09)=(70+x)0.07 equation:


Simplifying
70(0.06) + x(0.09) = (70 + x) * 0.07

Multiply 70 * 0.06
4.2 + x(0.09) = (70 + x) * 0.07

Reorder the terms for easier multiplication:
4.2 + 0.09x = (70 + x) * 0.07

Reorder the terms for easier multiplication:
4.2 + 0.09x = 0.07(70 + x)
4.2 + 0.09x = (70 * 0.07 + x * 0.07)
4.2 + 0.09x = (4.9 + 0.07x)

Solving
4.2 + 0.09x = 4.9 + 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.
4.2 + 0.09x + -0.07x = 4.9 + 0.07x + -0.07x

Combine like terms: 0.09x + -0.07x = 0.02x
4.2 + 0.02x = 4.9 + 0.07x + -0.07x

Combine like terms: 0.07x + -0.07x = 0.00
4.2 + 0.02x = 4.9 + 0.00
4.2 + 0.02x = 4.9

Add '-4.2' to each side of the equation.
4.2 + -4.2 + 0.02x = 4.9 + -4.2

Combine like terms: 4.2 + -4.2 = 0.0
0.0 + 0.02x = 4.9 + -4.2
0.02x = 4.9 + -4.2

Combine like terms: 4.9 + -4.2 = 0.7
0.02x = 0.7

Divide each side by '0.02'.
x = 35

Simplifying
x = 35

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