Simplify each expression. justify each step 2y + ( 4 + 5y)

7y + 4

Explanation:

2y + ( 4 + 5y)

= 2y + 4 + 5y

= (2y + 5y) + (4)

- PNW

infinitely many solutions

step-by-step explanation:

we have been given the equation;

2(2x + 3) = -4 + 2(2x + 5)

we need to determine the value of x.

2(2x + 3), we expand this expression to obtain 4x + 6

similarly 2(2x + 5) will become 4x + 10

now we have;

4x + 6 = -4 + 4x + 10

4x + 6 = 4x + 10 - 4

4x + 6 = 4x + 6

the expression on the left hand side is identical to the one on the right hand side. therefore, we are looking at just a single straight line whose equation is;

y = 4x + 6

consequently, we shall have infinitely many solutions

answer4 to the second power is 16

and 4 to the third power is 64,