-5y+4(-y+9)-7(7+3y)=47

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Solution for -5y+4(-y+9)-7(7+3y)=47 equation:


Simplifying
-5y + 4(-1y + 9) + -7(7 + 3y) = 47

Reorder the terms:
-5y + 4(9 + -1y) + -7(7 + 3y) = 47
-5y + (9 * 4 + -1y * 4) + -7(7 + 3y) = 47
-5y + (36 + -4y) + -7(7 + 3y) = 47
-5y + 36 + -4y + (7 * -7 + 3y * -7) = 47
-5y + 36 + -4y + (-49 + -21y) = 47

Reorder the terms:
36 + -49 + -5y + -4y + -21y = 47

Combine like terms: 36 + -49 = -13
-13 + -5y + -4y + -21y = 47

Combine like terms: -5y + -4y = -9y
-13 + -9y + -21y = 47

Combine like terms: -9y + -21y = -30y
-13 + -30y = 47

Solving
-13 + -30y = 47

Solving for variable 'y'.

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

Add '13' to each side of the equation.
-13 + 13 + -30y = 47 + 13

Combine like terms: -13 + 13 = 0
0 + -30y = 47 + 13
-30y = 47 + 13

Combine like terms: 47 + 13 = 60
-30y = 60

Divide each side by '-30'.
y = -2

Simplifying
y = -2

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