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
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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
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