Answer:
18 is correct answer .......
Answer:
Bill is 9 years old
Step-by-step explanation:
Bill is 4 years older than 5 year old Harris. 5+4 is 9 so plot Bill on the number line as 9.
One way is ellimination metahto where we add
add them together
x+y=-2
<u>2x-y=5 +
</u>3x+0y=3
3x=3
divide by 3
x=1
subsitute
x+y=-2
1+y=-2
subtract 1
y=-3
answer
x=1
y=-3
answer is in form (x,y) and is (1,-3)
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