7y+9=4z-20

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Solution for 7y+9=4z-20 equation:


Simplifying
7y + 9 = 4z + -20

Reorder the terms:
9 + 7y = 4z + -20

Reorder the terms:
9 + 7y = -20 + 4z

Solving
9 + 7y = -20 + 4z

Solving for variable 'y'.

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

Add '-9' to each side of the equation.
9 + -9 + 7y = -20 + -9 + 4z

Combine like terms: 9 + -9 = 0
0 + 7y = -20 + -9 + 4z
7y = -20 + -9 + 4z

Combine like terms: -20 + -9 = -29
7y = -29 + 4z

Divide each side by '7'.
y = -4.142857143 + 0.5714285714z

Simplifying
y = -4.142857143 + 0.5714285714z

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