Question 718042
x = one weight
2x - 7 = other weight {one is 7 less than twice the other}


x + 2x - 7 = 38 {the combined weight of the two is 38}
3x - 7 = 38 {combined like terms}
3x = 45 {added 7 to each side}
x = 15 {divided each side by  3}
2x - 7 = 23 {substituted 23, in for x, into 2x - 7}


15 kg and 23 kg are the weights of each piece
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