Sally lends half her collection of formal attire to her sister Annie, sally then buys four more attires. If she had 12 attires now, how many attires did sally have initially

16 attires

Step-by-step explanation:

Let us represent the number of attires:

Sally has initially = x

Sally lends half her collection of formal attire to her sister Annie

This means, Sally has currently = 1/2x attires

Sally then buys four more attires. If she had 12 attires now.

Hence, this is expressed Mathematically as:

1/2x + 4 = 12

1/2x = 12 - 4

1/2x = 8

x/2 = 8

Cross Multiply

x = 8 × 2

x = 16

Therefore, the amount of attires Sally had initially = 16 attires

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

-12 > a

step-by-step explanation:

-11 > 1 + a

subtract 1 from each side

-11-1 > 1-1+a

-12 > a