(2x+5)=12
(2x+3y)=8
Eliminate x first to find y by subtracting.
2x-2x+5y-3y= 12-8
2y= 4
Divide by 2 for 2y and 4
2y/2=4/2
y= 2
Find x by using the substitution method.
2x+5y= 12 (y= 2)
2x+5(2)= 12
2x+10=12
Move +10 to the other side. Sign changes from +10 to -10.
2x+10-10= 12-10
2x= 2
Divide by 2 for 2x and 2
2x/2= 2/2
x= 1
Answer: (1,2)