Analyze the positives and negatives of the Industrial Revolution. All in all, was it worth it? - Try to imagine what your life would be like without any machines working for you. How did the Industrial Revolution change life dramatically?
How does the Industrial Revolution has changed your life?

when in doubt choose c

it's what my teacher told my class when we were going into psats

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

where is the i can't with a multiple choice question without the choices