Answer:
solution for 2a+5=25 equation
2a + 5= 25 + - 15
SIMPLIFYING
reorder the terms:
25 + 2a = 5a + - 15
reorder the terms:
25+2a = - 15 + 5a
SOLVING
25 + 2a = - 15 + 5a
SOLVING FOR VARIABLE 'A'
Move all terms containing a to the left, all
other terms to the right.
add '-3a' to each side of the equation.
25+ 2a + - 5a + 15 + 5a + - 5a
combine like terms: 2a + - 2a = - 1a
25 + - 1a = - 15 + 3a + - 3a
combine like terms: 3a + - 3a = 0
25 + - 1a = - 15 + 0
25 + - 1a = - 15
add '-25' to each side of the equation.
25 + - 25 + - 1a = - 15 + - 25
combine like terms: 25 + - 25 = 0
0 + - 1a = - 15 + - 25
- 1a = - 15 + - 25
combine like terms: - 15 + - 25 = - 40
- 1a = - 40
divide each side by '-1'.
a=40
SIMPLIFYING
a=40
