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16x+2(3x-5)=-32
16x+6x-10=-32
22x-10=-32
22x=-22
x=-1
Answer:
3 small pizzas costs 32 and 3 medium pizzas 114/9
Step-by-step explanation:
x = medium pizzas
y small pizzas
3x + 3y = 51
5y + 2x = 55
Answer:
1360.78 g
Step-by-step explanation:
1 lb = 453.592 g
3 lbs = 3 * 453.592 g = 1360.78 g
Answer:
Step-by-step explanation:
Add 4y to both sides in the first equation:
Substitute that new equation into the second equation:
Add 31 to both sides:
Divide -1 on both sides:
Substitute y=-6 in the third equation (first equation but modified)