1. The answer is already in its simplest form.
3. 3i + i is equal to 4i.
5. Combining like terms results in -5 - 9i.
Answer:
1.81
2.36
3.40
4.54
5.80
6.-40
7.-60
Step-by-step explanation:
1.y= 9*9
2.a = 3*12
3.n = -4 * -10
4. x = 9*6
5.d = -8 * -10
6. t = -2 * 20
7. g = 10* -6
Step-by-step explanation:
-x+2y=-6
x-2y=6
x=2y+6
substitute in 2x-3y=11 gives us 2(2y+6)-3y=11
4y+12-3y=11
y=-1
-x+2(-1)=-6
-x=-4
x=4
Answer:
4) d = 1
5) w = 11
6) q = 120
Step-by-step explanation:
<em>4)</em> 
Adding 5 on both the sides ,


Dividing both the sides by 9 ,


<em>5)</em> 
Substracting 6 from both the sides ,


Dividing both the sides by -3 ,


<em>6)</em> 
Adding 19 on both the sides ,


Multiplying both the sides by 8 ,

