Answer:
x=3; y= -10
I will prefer addition of equation instead of substitution, but you asked how to substitute
Step-by-step explanation:
-x+y=-13
y=x-13
3x-(x-13)=19
3x-x+13=19
2x=6, x=3
-3+y=-13, y=-13+3, y=-10
Answer: a =
<u>Step-by-step explanation:</u>
W = 3(2a + b) - 4
W = 6a + 3b - 4
W - 3b + 4 = 6a
= a
Answer:
Their intercepts are unique.
Explanation:
This graph's x-intercept is located at approximately [6,41259894, 0], and the y-intercept located at [0, −508].
The parent graph here, has both an x-intercept and y-intercept located at the origin.
I am joyous to assist you anytime.
Answer:
80
Step-by-step explanation:
16:20*100 =
(16*100):20 =
1600:20 = 80
So what they are trying to say is that they both have the same y-intercept. Easy!
Make y the subject:
5x - 2y = 3
2y = 5x - 3
y = 2.5x - 1.5
The y-intercept is -1.5.
Make y the subject:
x + y = a
y = -x + a
Therefore, a must be -1.5 !