can't answer without some kind of an "=" in it. If you mean 4-2-x-8x+19 = 0, then it would simplify to: -9x = 21 and therefore x = -21/9 ==> x = -2 1/3
138
v = -5
The answer is 672.
The answer is 61. Simply add the numbers together arithmetically as you would for the problem two plus two. To check your work, a calculator is the best option.
491
19 + 19 + 4 + 4 = 46
19+19+9 = 47
21+21+19+19=80
19 + (44 + 23) = (19 + 44) + 23
10x + (8-x) = -19 10x + 8 = x - 19 10x = x - 27 9x = 27 x = 3
x = 3 and y = 2
25 plus 21 plus 19 is equal to 65.