Answer:
Step-by-step explanation:
3x-5=1x+25 add 5 to both sides
3x=1x+30 subtract 1x from both sides
2x=30 divide both sides by 2
x=15
4x=2y-12, using x=15
4(15)=2y-12
2y-12=60 add 12 to both sides
2y=72 divide both sides by 2
y=36
So x=15 and y=36
4x and x+25 are the dimensions
4(15)=30, and 15+25=40
P=2(30+40)
P=140
