Question

Solve the following pair of linear equations
by the substitution method :
(i) 7x - 15y = 2 (ii) 2x + 3y = 9
x + 2y = 3
4x + 6y = 18
(iii) x + 2y = 5
(iv) 0.2x+0.3y = 1.3
2x + 3y = 8
0.4x +0.5y=2.3
(v) x + 2y = -1 (vi) 3x - 5y + 1 = 0
2x - 3y = 12
X-y+ 1 = 0​

Answer 1

Answer:

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Step-by-step explanation:

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