Berta worked to solve a system of equations. 4x + y = –5 x – y = –5 step 1: step 2: x = –2 step 3: 4(–2) + y = –5 step 4: –8 + y = –5 step 5: y = 3 berta determined that the solution is (–2, 3). which could have been the equation berta found in step 1?

in the math equation 8 x 7 = 56, the 8 and the 7 are both factors of 56, since in this lesson we will use square tiles to figure out the factors of a whole find as many different arrays as you can, but follow one important rule: all the rows must have the i can make two rows of nine, so 2 and 9 are both factors of 18.

step-by-step explanation: