5x - 2y + (7x - y).....x = 7 and y = -2
now we sub
5(7) - 2(-2) + (7(7) -(-2)
35 + 4 + (49 + 2)
35 + 4 + 51
90 <===
Answer:
2x - 4y + 15
Step-by-step explanation:
<h3>Answer :</h3>
ASA (Angle Side Angle) method can be used to prove ∆ABC ≅ ∆DEF
<h3>Solution :</h3>
In ∆ABC and ∆DEF
∠A ≅ ∠D (given)
AB ≅ DE (given)
∠B ≅ ∠E (given)
So, by ASA congruency criteria
∆ABC ≅ ∆DEF
