2x-x-7=0

3x-7=0

add 7 to 7 and 0, so then we cross out 7-7, and then

3x=7, bc u change the subtraction to addition, sr if thst doesn't make sense but 3x=7 is the answer

8 0

3 years ago

Read 2 more answers

Can someone help me

enot [183]

Answer:

EFD

Step-by-step explanation:

Just follow the marks on the triangle.

3 0

2 years ago

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3x + 7y = 21 –3x – 7y = 42<br> Solve the system of equations?

likoan [24]

9514 1404 393

Answer:

no solution

Step-by-step explanation:

The equations describe parallel lines. There are no values of x and y that will satisfy both equations.

In standard form, the two equations are ...

3x +7y = 21

3x +7y = -42 . . . . . with positive leading coefficient

If (x, y) values satisfy the first equation, they cannot satisfy the second equation, and vice versa.

8 0

3 years ago

A number,n,has been increased by 78%

lilavasa [31]

Answer:

Get to 100% easly

Step-by-step explanation:

4 0

3 years ago