Step-by-step explanation:
AD ≅ BC, Given
∠BCD ≅ ∠ADC, Given
CD ≅ CD, Reflexive property
ΔBCD ≅ ΔADC, SAS congruence
∠BDC ≅ ∠ACD, CPCTC
ΔECD is an isosceles triangle, definition of isosceles
DE ≅ CE, properties of isosceles triangles
The first equation has a solution of X=-5
7-4x=2-9x the answer is x=1
Answer:
600,000
Step-by-step explanation:
around 620,000 so 600000 is the closest answer