Solving Multi-Step Equations

Front

What is the first step in solving the equation 2a - 4(a - 5) = 10?

Back

Distribute -4 to a and -5

Front

8 = (³⁄₄)a +12 - a + 4

Back

32

Front

4(a + 3) = -32

Back

-11

Front

Which step is incorrect? 120 = 4(7a+2) Step 1: Distribute 120 = 28a + 8 Step 2: Subtract 8 from both sides 112 = 28a Step 3: Divide both sides by 28 a=4

Back

Problem is worked correctly

Front

Which step is incorrect? 120 = -4(7a+2) Step 1: 120 = -28a - 8 Step 2: 112 = -28a Step 3: a=-4

Back

Step 2