Answer: z = 3
Step-by-step explanation: To solve this equation for <em>z</em>, we can first combine our like terms on the left side of the equation. Since 12 and 7 both have <em>z</em> after their coefficient, we can subtract 12z - 7z to get 5z.
Now we have 5z - 2 = 13.
To solve from here, we add 2 to the left side of the equation in order to isolate 5z. If we add 2 to the left side, we must also add 2 to the right side. On the left side, the -2 and +2 cancel out. On the right, 13 + 2 simplifies to 15.
Now we have 5z = 15.
Solving from here, we divide both sides of the equation by 5 to get <em>z</em> alone. On the left side, the 5's cancel out and we are simply left with <em>z</em>. On the right side, 15 divided by 5 simplifies to 3 so we have z = 3.
Answer:
8
Step-by-step explanation:
8% is the annual interest rate. Since, only 3 month has been passed in the year end so, interest accrue of only 3 months.
8% is the interest of 12 months. So, 8%/12 is the interest rate of 1 month. But we want 3 month of interest rate. Multiplying (8%/12)*3, we will get 3 month interest rate.
Note, that we have substituted x with 8. Because, we need interest rate of 3 month, and 8 is the interest rate of 12 months.
Answer:
Edge2020
Step-by-step explanation:
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