Respuesta :
Answer:
y=0
Step-by-step explanation:
5x+2y=20
x=4
5(4)+2y=20
20+2y=20
2y=0
y=0
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Answer:
y=0
Step-by-step explanation:
#1: you have subsitue 4 for x in 5x+2y=20
#2: 5(4)+2y=20; Now you must mulitply 5 and 4 which gives u 20.
#3: 20+2y=20; Next you must subract 20 on both sides.
#4: 2y=0; Finally, divide 2 on both sides.
Answer: y=0
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