Question

find the two consecutive even numbers whose sum is 138.​

Answer 1

Answer:

x = first even integer

x + 2 = second even integer

x + x + 2 = 138 {their sum is 138}

2x + 2 = 138 {combined like terms}

2x = 136 {subtracted 2 from both sides}

x = 68 {divided both sides by 2}

x + 2 = 70 {substituted 68, in for x, into x + 2}

68 and 70 are the two consecutive even integers

Step-by-step explanation:

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Answer 2

Answer:

let the first no. be x

2nd no. x + 2

Sum = x + x +2

138 = 2x + 2

138-2 = 2x

136 = 2x

136/2 = x

68 = x

1st no. = 68

2nd no. = 68+2

= 70