Question

4x + 5x + 12 = -6 (given)
9x + 12 = -6 (simplify)
9x = -18 (subtraction)
x = -2 (addition)
Which reason is incorrect?
A) addition
B) given
C) simplify
D) subtraction
@Decarr432

Answer 1

D maybe

Answer 2

how do you get from
9x = -18 to x = -2?

Answer 3

x = -2 is wrong by the way

Answer 4

nevermind when they say add it is not adding

Answer 5

is that all thats given in this problem?

Answer 6

9x = -18
x = -18/9

Answer 7

by dividing

Answer 8

right - and the reason given is addition

Answer 9

so what about the reason given for subtraction?

Answer 10

thats correct because you subtract 12 from both sides

Answer 11

ok thanks

Answer 12

isnt addition and multiplication the main functions, subtraction and division are still addition and multipl

Answer 13

add a negative or multiply by a fraction