14. Solve $4(x+9)=6 x-4$
A. 3.2
B. 6.5
C. 16
D. 20

Answer

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Answer

Final answer: x=\boxed{20}

Steps

Step 1 ：Expand the left side: 4(x+9)=4x+36

Step 2 ：Subtract 4x from both sides: 36=2x-4

Step 3 ：Add 4 to both sides: 40=2x

Step 4 ：Divide both sides by 2: x=20

Step 5 ：Check the solution: 4(20+9)=6(20)-4

Step 6 ：Simplify: 4(29)=120-4

Step 7 ：Simplify further: 116=116

Step 8 ：Final answer: x=\boxed{20}