Step-by-step explanation:
If n represents the number, then you get;
n(13-6) or n(7) or n * 7
7 is the most common in this expression.
therefore to factorise, you will choose the most common factor.
the answer will be -7(r+5x)
He will earn £360, for a total in his account of £1560.
The formula for simple interest is
I = prt, where I is the amount of interest, p is the principal invested or borrowed, r is the rate as a decimal number, and t is the amount of time. Using our information we have:
I = 1200(0.1)(3) = 360
This is the amount of interest. We add this to his original 1200 to get the total amount:
1200 + 360 = 1560.
Answer:
x = 17 + y
Step-by-step explanation:
Simplifying
x + -1y = 17
Solving
x + -1y = 17
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add 'y' to each side of the equation.
x + -1y + y = 17 + y
Combine like terms: -1y + y = 0
x + 0 = 17 + y
x = 17 + y
Simplifying
x = 17 + y
Answer:
4a - 20b - 3c
Step-by-step explanation:
6a - 5b - 8c - 15b - 2a + 5c
= 4a - 20b - 3c
