Answer:
x = 6
Step-by-step explanation:
6 - 2x = (5-9)x +18
6 - 2x = -4x +18
2x = 12
x = 6
Answer:
y=6
Step-by-step explanation:
Isolate y by multiplying by 6
1*6=y/6*6
y=6
Check
6/6=1
Answer:
10 girls are not on either team
Step-by-step explanation:
first subtract 6 from 8 to get 2 (since it's easier) because those 6 girls are on the math league team as well
next add 2 and 13 to get 15
last subtract 15 from 25 to get 10
Answer:
slope of line ax + by = c is -a/b
so, slope of 7x +2y =5 is -7/2