If the number A is 2 times greater than the number B and the number B is 70 less than the number A, find the sum of the numbers A and B.
若甲数比乙数的3倍大2，乙数比甲数小70，求甲、乙两数的和．
<gadget id="calculator">70 - 2</gadget>
<output>68</output>

<gadget id="calculator">3 - 1</gadget>
<output>2</output>

<gadget id="calculator">68 / 2</gadget>
<output>34</output>

<gadget id="calculator">34 + 70</gadget>
<output>104</output>

<gadget id="calculator">104 + 34</gadget>
<output>138</output>

<result>138</result>