Question

solve the pair by substitution method
x-2y+3=0
4x-y+2=0​

Answer 1

Answer:

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Answer 2

Solution

Given :-

• x - 2y = -3 ______(1)
• 4x - y = -2 ______(2)

Find :-

• Value of x & y , by Substitution method.

Explanation

Substitution Method

By equ(1),

• x = -3 + 2y ________(3)

Keep value of x in equ(2)

➡ 4(-3+2y) - y = -2

➡-12 + 8y - y = -2

➡7y = -2 + 12

➡7y = 10

➡y = 10/7

Keep Value of y in equ(3)

➡x = (-3 + 2×10/7)

➡x = (-3 + 20/7)

➡x = (-21 + 20)/7

➡x = -1/7

Hence

• Value of x = -1/7
• Value of y = 10/7

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