Question

9y-4(y+1)=31 solve for y

Answer 1

Simplifying 9Y + -4(Y + 1) = 31

Reorder the terms:

9Y + -4(1 + Y) = 31

9Y + (1 * -4 + Y * -4) = 31

9Y + (-4 + -4Y) = 31


Reorder the terms:

-4 + 9Y + -4Y = 31

Combine like terms:

9Y + -4Y = 5Y -4 + 5Y = 31

Solving -4 + 5Y = 31

Solving for variable 'Y'.

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

Add '4' to each side of the equation.

-4 + 4 + 5Y = 31 + 4

Combine like terms:

-4 + 4 = 0

0 + 5Y = 31 + 4

5Y = 31 + 4

Combine like terms:

31 + 4 = 35 5Y = 35

Divide each side by '5'.

Y = 7

Answer 2

Hey there Ronnismith,

Answer:

9y - 4 (y + 1) = 31
9y - 4y - 4 = 31
9y - 4y = 31 + 4
5y = 35
y = 35 / 5
   = 7

Hope this helps :D

~Natasha♥