-3a + 5 =-1 please help me

2

Step-by-step explanation:

To find a we need to first isolate it. There is a 5 on the left side along with the -3a that has to be moved.

To do this, we can subtract 5 from both sides of the equation using the subtraction property of equality.

-3a + 5 - 5 = - 1 - 5

-3a = -6

Now that the a term is isolated, the next step is to remove the coefficient.

Let's use the division property of equality and divide both sides of the equation by -3.

-3a/-3 = -6/-3

a = 2

answer set (b) 0.5, 3/4 80% is in order from least to greatest.  

step-by-step explanation:

in order to compare rational numbers to each other, it is much easier if they are in the same form.   typically, the best form in which to evaluate rational numbers is in decimals.   in order to convert a percent to a decimal, you would divide the given percentage by 100.   you can also accomplish the conversion by moving the decimal point over two places to the left.   for example, the decimal value of 80% is 80/100, or 0.8.   in order to convert a fraction to a decimal, you need to divide the numerator by the denominator.   for example, 3/4 is 0.75.   so, for choice (b) 0.5 3/4 (0.75), 80% (0.8) is the only choice in which the numbers are in order from least to greatest.