Question

Need help guys give me right answer i will marke you as brainliest!!

1) The product of a number (x) and 7 decreased by the product of another number (y) and 7 is equal to 20: Equation:_________________
Solve your system:
X = __________ Y = __________

2) That number (x) increased by the product of a number (y) and 7 is equal to 16: Equation:_________________
Solve your system:
X = __________ Y = __________

Answer 1

Answer:

1)  7x-7y=20 .  2) x+7y=16

X= 0.67 rounded to the nearest hundredth

Y=2.19 rounded to the nearest hundredth

7(16-7y)-7y=20 .    (substitution)

(112-49y)-7y=20 .  (distribution)

112-42y=20 .         (combine like terms)

-42y=-92 .            (subtract 112 from both sides of this equation)

y=2.19 .                (rounded to the nearest hundredth)

x+(7*2.19)=16

x=0.67

Hope this helps.