-10 - (-8) + (-4) - 20
When subtracting a negative, you add the number.
When adding a negative, you subtract the number.
-10 + 8 - 4 - 20
Do addition and subtraction from left to right.
When adding a negative to a positive, keep the sign of the larger number.
When subtracting from a negative, you add the numbers together and keep the negative sign.
-10 + 8 - 4 - 20
-10 + 8 = -2
-2 - 4 = -6
-6 - 20 = -26
Answer:
x = 2, y = -3
Step-by-step explanation:
Add them together and get
9x + 8y - 9x - 9y = -6 + 9
-y = 3
so y = -3.
Sub it into the first equation and get
9x + 8(-3) = -6
9x - 24 = -6
9x = -6 + 24 = 18
x = 18/9 = 2
Answer:
y^6 z^12
Step-by-step explanation:
When the bases are the same that means that the powers on the inside can be multiplied by whatever is outside.
Hope this helps :)
