If a = -3 and b = 5, then the value of =

It could be +2 or -8

Step-by-step explanation:

To get +2 you would have to do a + b.  Which would even up too -3 + 5.  that equals +2 and if you flip it you get the same thing b + a.

To get -8 you have too subtract instead of adding.  So you would do a - b.  That would be -3 - 5.  and when you subtract negatives you must Keep, Change, and Flip (KCF) the problem.  You would Keep -3, then you Change the sign which means from subtraction to addition so - to +.  And the last step is to Flip it which means to flip the number to the opposite sign +5 would go to -5.  So in the end you would have -3 + -5 which gives you -8.

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