0.12y+0.03(y+3000)=840

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Solution for 0.12y+0.03(y+3000)=840 equation: 


Simplifying
0.12y + 0.03(y + 3000) = 840

Reorder the terms:
0.12y + 0.03(3000 + y) = 840
0.12y + (3000 * 0.03 + y * 0.03) = 840
0.12y + (90 + 0.03y) = 840

Reorder the terms:
90 + 0.12y + 0.03y = 840

Combine like terms: 0.12y + 0.03y = 0.15y
90 + 0.15y = 840

Solving
90 + 0.15y = 840

Solving for variable 'y'.

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

Add '-90' to each side of the equation.
90 + -90 + 0.15y = 840 + -90

Combine like terms: 90 + -90 = 0
0 + 0.15y = 840 + -90
0.15y = 840 + -90

Combine like terms: 840 + -90 = 750
0.15y = 750

Divide each side by '0.15'.
y = 5000

Simplifying
y = 5000

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