An unknown number y is 10 more than an unknown number x. The number y is also x less than 3. The equations to find x and y are shown below.

y = x + 10
y = −x + 3

Which of the following statements is a correct step to find x and y?

Add the equations to eliminate x.
Multiply the equations to eliminate y.
Write the points where the graphs of the equations intersect the x-axis.
Write the points where the graphs of the equations intersect the y-axis.

Question

An unknown number y is 10 more than an unknown number x. The number y is also x less than 3. The equations to find x and y are shown below. 

y = x + 10 
y = −x + 3 

Which of the following statements is a correct step to find x and y?

 Add the equations to eliminate x.
 Multiply the equations to eliminate y.
 Write the points where the graphs of the equations intersect the x-axis.
 Write the points where the graphs of the equations intersect the y-axis.

anonymous · Answer

add the equations to eliminate x.
write the pnts. where the graphs of the eqn. intersect the x-axis

anonymous · Answer

i can only choose one

mathstudent55 · Answer

Answer is choice A.

anonymous · Answer

i think add the equations to eliminate x as it is easiest

anonymous · Answer

thank you

anonymous · Answer

can you help me with one more @mathstudent55

anonymous · Answer

my second statement is correct
since from one graph you can find the value of both x,y

anonymous · Answer

but by adding you can only get the value of y