Question

7x + 2y + 5 = 0, 2y + 3 = 0
by substituting method​

Answer 1

Answer:

2y + 3 = 0

2y= -3 -------1

7x + 2y + 5 = 0 (substitute 1 in this equation)

7x-3 + 5 = 0

7x + 2 = 0

7x = -2

x = -2/7

y = -3/2

Step-by-step explanation:

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Answer 2

Answer:

$7x + 2y - 2y + 5 - 3 = 0 = 7x + 2 = 0 = x = 2 \div 7 = 0.28| |$