Question

Solve each system by substitution. y=2x-1 3x+8y=11

Answer 1

X=1 y=1

Answer:

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

3x+8y=11 ---(2)

sub (1) into (2)

3x+8(2x-1)=11

3x+16x-8=11

19x=19

X= 1

sub X= 1 into (1)

y= 2(1)-1

y=1