Step 1: Multiply 4 by (5n-7). = 20n - 28 Step 2: Subtract 10n from both sides. The equation is now 10n - 28 = 2. Step 3: Add 28 to both sides. The equation is now 10n = 30. Step 4: Divide both sides by 10. The equation is now n = 3. The final answer is n = 3.
<span>First distribute the 4(5n-7); 20n-28=10n+2 Now subtract both sides by 10n and add 28 to both sides; 20n-10n=2+28 10n=30 n=3 Hope you understand =)</span>