Question

1. Solve the following pairs of linear equations
by the method of substitution :
(1)x + y = 7, 5x + 12y = 7
(2) 3x + y = -1, 2x - 3y = -8
(3)x + 8y = 19, 2x + 1ly = 28
( 4 ) x + y = 11, 2x + 3y = 26​

Answer 1

Answer:

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Answer 2

Answer:

in the same way u can solve rest of the questions.....

Step-by-step explanation:

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