The answer would be (-3+18) + (i +5i)
This is because changing the order of the numbers does not change the sum
Answer:
4 units
Step-by-step explanation:
CAB and EAD are similar triangles with sides in the ratio 2:1
ED = ½ AB
½(8)
4
Answer:
just simplify it ...
Step-by-step explanation:
- 4a-b+4b-a=180
- 3a+3b=180
- 3(a+b)=180
- both sides divide by 3
- a+b =60
- b=60-a
You can multiply or divide one equation so that it has a variable with a coefficient opposite of the other equation.
Example:
A) 2x + 3y = 6
B) 4x +2y = 20
Notice that neither equation has a "1" or "-1"
Let's multiply Equation A) by -2
A) -4x -6y = -12 Then add it to B)
B) 4x +2y = 20
-4y = 8
y= -2
A) 2x + 3*-2 = 6
2x = 12
x = 6