Three times the sum of a number and five gives a result of 21. Find the number?

unknown values: x

equation: 3 * (x + 5) = 21

answer: 2

find 3 consecutive integers such that the sum of twice the second and three times the third is 5 less than six times the first

unknown values: x-1,x,x+1

equation: 2*x+3*(x+1)=6*(x-1)-5

answer: 13; 14; 15

Find three consecutive integers such that the sum of twice the second and three times the third is five less than six times the first.

unknown values: x-1, x, x+1

equation: 2*x+3(x+1)=6(x-1)-5

answer: 13; 14; 15

The sum of 3 integers is 251. The sum of the 1st and 2nd integers exceeds the 3rd by 45. The 3rd integer is 42 less than the 1st. Find the 3 integers

unknown values: x,y,z

equation: x+y+z=251

equation: x+y=z+45

equation: z=x-42

answer: 145; 3; 103

The sum of three integers is 69. The sum of the first and second integers exceeds the third by 93. The third integer is 10 less than the first. Find the three integers.

unknown values: x,y,z

equation: x+y+z=69

equation: x+y=z+93

equation: z=x-10

answer: -2; 83; -12

when 23 is added to 4 times a certain number the answer is 11. Find this number

unknown values: x

equation: 23+4*x=11

answer: -3

if 25 is added to three times of a number 52 is obtained. find the number.

unknown values: n

equation: 3*n + 25 = 52

answer: 9

two more than the product of 5 and x is 12

unknown values: x

equation: 5*x+2=12

answer: 2

if 6 times a number is added to 8, the result is 56. What is the number

unknown values: n

equation: 8 + 6*n = 56

answer: 8

The difference of 10 and the product of 6 and n is 21.

unknown values: n

equation: 10 - 6*n = 21

answer: -11/6 | -1.833