Question

solve the following pairs of linear equation using method of elimination by substitution
8x + 5 y is equal to 9
3 x + 2 y is equal to 4​

Answer 1

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Answer 2

Answer:

Given that,

8x+5y=9———eq-1

3x+2y=4———eq-2

from eq-1 &eq-2

eq-1×2=>16x+10y=18

eq-2×5=>15x+10y=20

—–—–—–—–—–—–

→ x=-2

substitute x value in eq2

3(-2)+2y=4

-6+2y=4

2y=4+6

y=10/2

→y=5