Step-by-step explanation:
- 3x+5y=7b equation 1
- 2x+4y=1
2x=-4y+1
- x=(-4y+1)/2
- x=(-4y+1)/2 in equation 1
3×(-4y+1)/2+5y=7b
(-12y+3)/2+5y=7b
(-12y+3+10y)/2=7b
(-12y+3)/2=7b
-12y+3=14b
-12y=14b-3
- y=3-14b/12
- y=3-14b/12 in x=(-4y+1)/2
x=(-4×{3-14b/12}+1)/2
x=(-3+14b)/3+1/2
x=14b/3×1/2
Answer: Store C by far, less money more time.
Step-by-step explanation:
Answer:
620
Step-by-step explanation:
55800/90
Answer:
yes,no, no, yes
Step-by-step explanation:
Answer: Solve for m m by simplifying both sides of the equation, then isolating the variable. m=15
Step-by-step explanation: Reducing to lowest terms On both sides
