How do i find the "greatest common factor" of 7z^11, −56z^9, 63z^8?
i think it is "7", but cannot figure out the variable

Write the slope-intercept form of the line that passes through the point (1, 0) and is parallel to x - y = 7. t

Girardo is using the model below to solve the equation . girardo uses the following steps: step 1 add 4 negative x-tiles to both sides step 2 add 1 negative unit tile to both sides step 3 the solution is which step could be adjusted so that gerardo's final step results in a positive x-value? in step 1, he should have added 4 positive x-tiles to both sides. in step 1, he should have added 3 negative x-tiles to both sides. in step 2, he should have added 4 negative unit tiles to both sides. in step 2, he should have added 1 positive unit tile to both sides.

Will mark name all segments skew to bc