287+(120-х)=300 2*х-267=133

Предыдущий
вопрос Следующий
вопрос

To solve the first equation
287 + (120 - x) = 30
Combine like terms
287 + 120 - x = 30
407 - x = 30
Subtract 407 from both sides
-x = -10
Divide by -1 to solve for x
x = 107

To solve the second equation
2x - 267 = 13
Add 267 to both sides
2x = 40
Divide by 2 to solve for x
x = 200

Therefore, the solutions for the two equations are
x = 107 and x = 200