Question

B+B+B = 12kg
T+B = 5kg
J-T = 99kg
J+B+T = ?

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Answer 1

105kg

Explanation:

B + B + B = 12kg

3B = 12kg divide both sides by 3

B = 4kg

Substitute to T + B = 5kg:

T + 4kg = 5kg subtract 4kg from both sides

T = 1kg

Substitute to J - T = 99kg:

J - 1 = 99kg add 1 to both sides

J = 100kg

Therefore:

J + B + T = 4kg + 1kg + 100kg = 105kg

Answer 2

J+B+T=105

Explanation:

B is 4

so 4 plus 4 plus 4 equals 12

T is 1

so 1 plus b which is 4 equals 5

J is 100

100 -T

100-1 equals 99