4x-39 = 2x+3, 4x-2x = 42 x=21
2x + 7 = 15 Subtract 7 from both sides: 2x = 8 Divide both sides by 2: x = 4
10: 3n = 2(n + 5); 3n = 2n + 10; (subtract 2n from each side) n = 10.
Suppose the number is x. Then 4x + 3 = 2x - 9 Subtract 2x from both sides: 2x + 3 = - 9 Subtract 3 from both sides: 2x = - 12 Divide both sides by 2: x = - 6
2x-5 is twice a number decreased by 5.
987598766
No.
My number is 11.
-1,-2,+2,-4,+4,-5,+5, +0. the sequence is subtract twice, add once, subtract again, add, then subtract, then add twice.
Let the number be x and so 3x+10-2x which can be simplified to x+10
There aren't any whole numbers that satisfy this.
Twice the rational number 5/2 = 5From this, you need to subtract 4 3/5 to get 2/5.
33%To find this out, you do 48/144=.33333. Move the decimal over to the right twice (multiplying by 100) and you get your percentage.
4x-39 = 2x+3, 4x-2x = 42 x=21
Twice
2x + 7 = 15 Subtract 7 from both sides: 2x = 8 Divide both sides by 2: x = 4
10: 3n = 2(n + 5); 3n = 2n + 10; (subtract 2n from each side) n = 10.