• Texas defeated the Mexican army at the
Battle of San Jacinto
under Sam Houston's
leadership.
Mexico was forced to
grant Texas its
independence,
The image on this slide is ineffective because
O it is not relevant to the text
O it is not a familiarimage.
O it is much too simplistic
O it is a confusing picture

yes he can but hardly

explanation:

simplify brackets

8 - 2a - 7 = a + 40

simplify 8 - 2a - 7 to -2a + 1

-2a + 1 = a + 40

add 2a to both sides

1 = a + 40 + 2a

simplify a + 40 + 2a to 3a + 40

1 = 3a + 40

subtract 40 from both sides

1 - 40 = 3a

simplify 1 - 40 o -39

-39 = 3a

divide both sides by 3

-39/3 = a

simplify 39/3 to 13

-13 = a

switch sides

a = -13