This equation is unsolvable without knowing one of the values of either x or y.
75
22+22+28+28=100.
it equals 28
3x + 7 = -4x + 28 implies 7x + 7 = 28
28
Set up the equation and solve for z: 28 + z = 56 (next, subtract 28 from each side of the equaition to solve) z = 28
a2+30a+56=0 , solve for a Using the quadratic formula, you will find that: a=-2 , a=-28
n = 28
This equation is unsolvable without knowing one of the values of either x or y.
75
22+22+28+28=100.
it equals 28
it is 28
3x + 7 = -4x + 28 implies 7x + 7 = 28
Divide 28 by 4. X = 7
-8x + 4y = 28 Add 8x to each side: 4y = 8x + 28 Divide both sides by 4: y = 2x + 7