Question

pls tell this plz tell​

Answer 1

Answer:

2x+10+3x-10+40=180. eq 1

(angle on straight line is always 180°)

add like terms

5x+40=180

5x=180-40

5x=140

Divide "5" on both side

5x/5=140/5

X=28

VERIFICATION

Put the value of X in eq 1

2x+10+3x-10+40=180

2(28)+10+3(28)-10+40=180

56+10+84-10+40=180

180=180

RHS=LHS

HENCE PROOVED