Question

solve the equation by substitution or elimination method 3x-7y+10=0 and y-2x-3=0

Answer 1

y-2x=3

y=3+2x ----(1)

3x-7y+10=0

Substituting value of y from (1)

3x-7(3+2x)+10=0

3x-21-14x+10=0

11x=11

x=1

substituting value of x in eqn (1)

y=3+2x

y=3+2(1)

y=5