Question

X+3y=15 2x-5y+10=0
solve ot by subsitution method

Answer 1

Answer:

• x=45/11 (reduce to mixed fraction) and y=40/11 (reduce to mixed fraction)

Step-by-step explanation:

• x+3y=15---(i)      ;     2x-5y+10=0---(ii)

From ---(ii) :-

5y-2x=10---(iii)

From ---(i) :-

x=15-3y---(iv)

Substituting ---(iv) in ---(iii):-

-- 5y-2(15-3y)=10

-- 5y-30+6y=10

-- 11y=40

-- [y=40/11]---(v)

Substituting ---(v) in ---(i):-

-- x+3(40/11)=15

-- x+120/11=15

-- x=15-120/11

-- [x= 45/11]

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Answer 2

Step-by-step explanation:

hope this is helpful

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