(7z - 4)(4z - 7) so z = 4/7 or 7/4
Chat with our AI personalities
30-2=28 so 2x=28 28 divided by 2=14, so x is 14
This equation is unsolvable without knowing one of the values of either x or y.
-8x + 4y = 28 Add 8x to each side: 4y = 8x + 28 Divide both sides by 4: y = 2x + 7
28 + 28 = 56.56 + 28 = 84.
22+22+28+28=100.