Given that 7 : 2 = x : 8,find the value of x

unknown values: x

equation: 7/2 = x/8

answer: 28

The second of three numbers is 1 less than the first. The third number is 5 less than the second. If the first number is twice as large as the third, Find the three numbers.

unknown values: x,y,z

equation: y=x-1

equation: z=y-5

equation: x=2*z

answer: {12;11;6}

The second of 3 numbers is 1 less than the first. the 3rd number is 5 less than the second. if the first number is twice as large as the 3rd, find the 3 numbers.

unknown values: x, y, z

equation: y = x - 1

equation: z = y - 5

equation: x = 2*z

answer: 12; 11; 6

The second of three numbers is one less than the first. The third number is five less than the second. If the first number is twice the size of the third, find the three numbers.

unknown values: x,y,z

equation: y = x - 1

equation: z = y - 5

equation: x = 2*z

answer: 12; 11; 6

twice the sum of a number and 3 is the same as 1 subtracted from the number. Find the number

unknown values: x

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

answer: -7

if n=7,what is the value of 3n+4

unknown values: x

equation: n=7

equation: x=3*n+4

answer: 25

A number is doubled, and then seven is added. When the result is divided by forty, the quotient is two and the remainder is thirty-three. Find the original number.

unknown values: x

equation: 2*x+7 = 40 * 2 + 33

answer: 53

Find two consecutive odd numbers such that the sum of three-sevenths of the first number and one-third of the second number is equal to thirty-eight.

unknown values: 2*k+1,2*k+3

equation: 3/7*(2*k+1)+(2*k+3)/3=38

answer: 49;51

find the two consecutive odd integers such that twice the smaller decreased by the larger equals 53

unknown values: 2*k+1,2*k+3

equation: 2*(2*k+1) = 53+(2*k+3)

answer: 55;57

find two consecutive odd integers such that twice the lager is 17 more than the smaller

unknown values: 2*k+1,2*k+3

equation: 2(2*k+3) = 17 + (2*k+1)

answer: 13; 15