<h2>
Answer:</h2>
-3.8x + 7 and c = -75/14 and/or c = -5.35714
<h3 /><h2>
Step-by-step explanation:</h2>
<em>First equation: </em>
1.2x + 7 - 5x =
Step 1 - Group like terms:
1.2 - 5x + 7
Step 2 - Add simliar elements:
1.2 x - 5x = -3.8x =
3.8x + 7
Answer: -3.8x + 7
<em>Second equation:</em>
2.2c - 3 = 2(6 - c) + 7c =
Step 1 - Multiply both sides by 10:
2.2c ⋅ 10-3 ⋅ 10 = 2(6 - c) ⋅ 10 + 7c ⋅ 10
Step 2 - Refine:
22c - 30 = 20(6-c) + 70c =
<em> - Expand 20(6-c): 120 - 20c</em>
22c - 30 = 120 - 20c + 70c
Step 3 - Add similar elements:
-20c + 70c = 50c =
22c - 30 = 120 + 50c
Step 4 - Add 30 to both sides:
22c - 30 + 30 = 120 + 50c + 30
Step 5 - Simplify:
22c = 50c + 150
Step 6 - Subtract 50c from both sides:
22c - 50c = 50c + 150 - 50c
Step 7 - Simplify:
-28c = 150
Step 8 - Divide both sides by -28:
-28c/-28 = 150/-28
Step 9 - Simplify:
c = -75/14
Answer:
Fraction form: c = -75/14
Decimal form: c = -5.35714
<em>Hey! Your question wasn't quite clear, so the most I could do was simplify both equations in a way you can hopefully understand. If these aren't the answers you were looking for, please elaborate on what I was supposed to answer!</em>
