x-7*y*4 >> solve it * is multiply-
-3
1.75
4
log37 - log3x = 4 log3(7/x) = 4 7/x = 34 = 81 x = 7/81
2x + 3 = x - 4 2x + 7 = x x + 7 = 0 x = -7 2(-7) + 3 = -11 (-7) - 4 + -11
-2x -4 = 10 -2x = 14 -x = 14/2 -x = 7 x = -7 easy.
x = 7 7-4/3 x 7 = 1/7 3/21 = 1/7
-3
Solve for x. 3x + 3 = x + 7 2x + 3 = 7 2x = 4 x = 2 Check it. 6 + 3 = 2 + 7 It checks.
3
8 x 7 - 6 x 4 equals a total of 32. To solve it, you can solve 8 x 7, which is 56, and then 6 x 4, which is 24. All you have to do then is subtract 56 - 24, and that gives you a total of 32.