Answer:
Step-by-step explanation:
Given
w + 1 = d...........equation 1
d = 3w ...............equation 2
Now putting d = 3w in equation 1
w + 1 = 3w
3w - w = 1
2w = 1
w = 1 / 2
putting w = 1 / 2 in equation 2
d = 1 / 2 * 3
= 3/2
Hope it helps :)
Answer:
2x - 2y = -8
x + 2y = -1
3x = -9
x = -3
-3 + 2y = -1
2y = 2
y = 1
(-3, 1) is the solution
Step-by-step explanation:
Answer:23
Step-by-step explanation:
Question 4:
OOOOOHHH a breakthrough! I was confused when I read this question but now I get it!
Okay when dividing this equation I would do this
5^4
25
Since 25 is 5 x 5 I would mark it as 5^2, and then I can subtract!
5^4
5^2 =
5^2
If you do it like this then it would be the first choice.