Can someone explain in math vocabulary how to to figure out the value of x?
(look at picture above)

x = - 5

Step-by-step explanation:

Given

= 2x + 3², that is

= 2x + 9 ( multiply both sides by 7 )

2x + 3 = 7(2x + 9) ← distribute

2x + 3 = 14x + 63 ( subtract 2x from both sides )

3 = 12x + 63 ( subtract 63 from both sides )

- 60 = 12x ( divide both sides by 12 )

- 5 = x ⇒ x = - 5

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.

the answer would be 1 1/72

step-by-step explanation:

you can rewrite the equation by separating the parts and then solving individually:

10-9=1

1/8 - 1/9=

find l c d and then combine:

1 1/72