Find the sum of (8a + 2b - 4 ) and ( 3b - 5 )
please help !!!

Step-by-step explanation: (8a + 2b + -4) = (3b + -5)

Reorder the terms:

(-4 + 8a + 2b) = (3b + -5)

Remove parenthesis around (-4 + 8a + 2b)

-4 + 8a + 2b = (3b + -5)

Reorder the terms:

-4 + 8a + 2b = (-5 + 3b)

Remove parenthesis around (-5 + 3b)

-4 + 8a + 2b = -5 + 3b

Solving

-4 + 8a + 2b = -5 + 3b

Solving for variable 'a'.

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

Add '4' to each side of the equation.

-4 + 8a + 4 + 2b = -5 + 4 + 3b

Reorder the terms:

-4 + 4 + 8a + 2b = -5 + 4 + 3b

Combine like terms: -4 + 4 = 0

0 + 8a + 2b = -5 + 4 + 3b

8a + 2b = -5 + 4 + 3b

Combine like terms: -5 + 4 = -1

8a + 2b = -1 + 3b

Add '-2b' to each side of the equation.

8a + 2b + -2b = -1 + 3b + -2b

Combine like terms: 2b + -2b = 0

8a + 0 = -1 + 3b + -2b

8a = -1 + 3b + -2b

Combine like terms: 3b + -2b = 1b

8a = -1 + 1b

Divide each side by '8'.

a = -0.125 + 0.125b

Simplifying

a = -0.125 + 0.125b

he spend 5.1 minutes chatting with his friends.

step-by-step explanation:

2/5+1/2=9/10

6/1-9/10=5.1

sup

step-by-step explanation: