(x−1) ∘
, \text{m}\angle I = (2x+5)^{\circ}m∠I=(2x+5)
∘
, and \text{m}\angle J = (7x+6)^{\circ}m∠J=(7x+6)
∘
. What is the value of x?x?

Type the correct answer in each box. spell all the words correctly, and use numerals instead of words for numbers. if necessary, use / for the fraction bar(s).