To solve for a, we'll start by distributing the 5 across the parentheses:
.
[tex]\[5 \times a + 5 \times 3 = 8\][/tex]
This simplifies to:
5a + 15 = 8
Now, let's isolate the term with a by moving 15 to the other side of the equation. Since 15 is added to 5a, we'll subtract 15 from both sides to maintain equality:
5a = 8 - 15
5a = -7
Finally, to solve for a, we'll divide both sides by 5:
a= -7/5
so a= -1.4
