7*0.7+x*0.3=5

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Solution for 7*0.7+x*0.3=5 equation:


Simplifying
7 * 0.7 + x * 0.3 = 5

Multiply 7 * 0.7
4.9 + x * 0.3 = 5

Reorder the terms for easier multiplication:
4.9 + 0.3x = 5

Solving
4.9 + 0.3x = 5

Solving for variable 'x'.

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

Add '-4.9' to each side of the equation.
4.9 + -4.9 + 0.3x = 5 + -4.9

Combine like terms: 4.9 + -4.9 = 0.0
0.0 + 0.3x = 5 + -4.9
0.3x = 5 + -4.9

Combine like terms: 5 + -4.9 = 0.1
0.3x = 0.1

Divide each side by '0.3'.
x = 0.3333333333

Simplifying
x = 0.3333333333

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