a is the value of the binomial 2a − 1 seven less than the value of the binomial 7 − 1.2a?

The question is asking for the value of 'a' when the binomial 2a - 1 is seven less than the binomial 7 - 1.2a.

Here are the steps to solve this:

Step 1: Set up the equation according to the problem. The equation will be:

2a - 1 = 7 - 1.2a - 7

Step 2: Simplify the equation:

2a - 1 = -1.2a

Step 3: Add 1.2a to both sides of the equation to isolate 'a' on one side:

2a + 1.2a = 1

Step 4: Combine like terms:

3.2a = 1

Step 5: Divide both sides by 3.2 to solve for 'a':

a = 1 / 3.2

So, the value of 'a' is 0.3125.