0.42x+0.70(140-x)=0.62(140)

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Solution for 0.42x+0.70(140-x)=0.62(140) equation:


Simplifying
0.42x + 0.70(140 + -1x) = 0.62(140)
0.42x + (140 * 0.70 + -1x * 0.70) = 0.62(140)
0.42x + (98 + -0.7x) = 0.62(140)

Reorder the terms:
98 + 0.42x + -0.7x = 0.62(140)

Combine like terms: 0.42x + -0.7x = -0.28x
98 + -0.28x = 0.62(140)

Multiply 0.62 * 140
98 + -0.28x = 86.8

Solving
98 + -0.28x = 86.8

Solving for variable 'x'.

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

Add '-98' to each side of the equation.
98 + -98 + -0.28x = 86.8 + -98

Combine like terms: 98 + -98 = 0
0 + -0.28x = 86.8 + -98
-0.28x = 86.8 + -98

Combine like terms: 86.8 + -98 = -11.2
-0.28x = -11.2

Divide each side by '-0.28'.
x = 40

Simplifying
x = 40

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