What should your first step look like when solving this system by substitution? y = 2x - 1 y = 5x +5​

if you only want the first step lol its literally 2x - 1 = 5x + 5 and then if you need it -6 = 3x

constant acceleration- a

constant velocity- c

no velocity or acceleration- b

explanation:

for body moving with a constant acceleration, the rate of change of displacement changes over time. this is proven by the increasing gradient of the curve (a) against time.

a body that is moving at constant velocity covers equal distances over equal periods of time, thus the straight line with a constant gradient c.

a stationary body   covers no displacement as time elapses. thus the flat line with   zero gradient.

$12. that is my answer.