Solve the following pair of linear equation by substitution method : 2x - 3y =4 & x + y = 5
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Step-by-step explanation:
substitution means to extract one value from one equation and put in another.
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Answer:
2x-3y=4;x+y=5
Step-by-step explanation:
multiplying equation2 by 2
3y+=10 -eqation3. 2x-3y=4 × 2x+3y=10 subtract. 2x=14. x=14÷2. x=7. put in equation1 2x-3y=4. 2×7-3y=4
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