7x+y-9=0
move constant to the left by adding its opposite to both sides. the sum of the two =0
27, just multiply30 by 9/10
2m-4 = x+nx switch sides
2m-4 = x (1+n) common factor
2m-4/1+4 = x divide both side by 1-x
Answer:
Step-by-step explanation:
Reduce the ratio to lowest terms, then multiply numerator and denominator by any same value to get another equivalent.

Answer:
136 in²
Step-by-step explanation:
8x2=16
6x2=12
6x2=12
6x2=12
10x2=20
10x2=20
10x2=20
8x2=16
2x2=4
2x2=4
136 in²