Step 1: Subtract 28 from both sides of the equation:
-7a + 28 - 28 = 7 - 28
-7a = -21
Step 2: Divide both sides by -7 to solve for 'a':
a = -21 / -7
a = 3
Therefore, the solution for 'a' is 3.
Solve for a.
−7a+28= 7
1 answer