Answer:
a +(b -c) = -9i +10j
Step-by-step explanation:
You can use the distributive property to remove the parentheses:
a +(b -c) = a + b - c
Add the vectors as though they were binomials.
a + b - c = (3 -2 -10)i +(4 +5 -(-1))j = -9i +10j
and surely you know how much that is.
Answer:
-18
Step-by-step explanation:
Let x be our number. First we have to write our equation.
The product of a number and -8 is represented as -8x (-8 multiplied by x). Remember that 'product' signifies multiplication.
The result is eight times the sum of x and 36. This is represented as 8(x + 36). We add x and 36 first because 8 has been multiplied by the sum of those two numbers.
So our equation is:
-8x = 8(x + 36)
We can now solve for x. First, expand the bracket.
-8x = 8x + 288
Next, subtract 8x from both sides. This will give us only one term containing x, which will make it easier to solve.
-8x - 8x = 8x + 288 - 8x
-16x = 288
Divide both sides by -16
x = -18
1. X= 61/8
2. X= 61/9
3. Y= 20/3
