Question 394453
If a number is multiplied by 7 and this product is increased by 42,
 the result is 87 greater than twice the opposite of the number.
:
Let x = "a number"
then
-x = "the opposite of the number"
:
Just write that it says
7x + 42 = 2(-x) + 87
7x + 42 = -2x + 87
7x + 2x = 87 - 42
9x = 45
x = {{{45/9}}}
x = 5
:
:
Check solution in original statement
7(5) + 42 = 2(-5) + 87
35 + 42 = -10 + 87
77 = 77