Answer:
7a + b
Step-by-step explanation:
5a + 2a + 3b - 2b
= 7a + 3b - 2b
= 7a + b
Use substitution
x + x + 4 = 2
2x = -2, x = -1
Y = -1 + 4, y = 3
Solution: (-1, 3)
Here's link to the answer:
tinyurl.com/wpazsebu
Answer:
x≤16
Step-by-step explanation:
1/2x - 3 ≤5
Add 3 to each side
1/2x -3+3 ≤5+3
1/2x≤8
Multiply each side by 2
1/2x*2 ≤8*2
x≤16