Answer:
Step-by-step explanation:
a 2 digit number xy (x tenth, y unit digit) y>x
x+y=12
y-x=2
x=5
y=7
57
Answer:
60
Step-by-step explanation:
Answer:
x=-10
Step-by-step explanation:
2x-8=4x+12
-2x. - 2x
-8=2x+12
-12. - 12
-20 = 2x
-10=x
Answer:
no
Step-by-step explanation:
2(3)+2=8
6+2=8
-x+3y=4
-(3)+3(2)=4
-3+6=4
3 does not equal 4
Answer:
6 square inches
Step-by-step explanation: