exam Maths Puzzle Numerical Ability

Please help me solve this problem:
2(x-6)+2=4(x+2)-12

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exam Other Question

Graph using the intercept method: 2x + y = 4. -12 1/5 - 3 3/10

Im Not Quite Sure How To DO This Problem. I know i simplify it first
-12 2/10 - 3 3/10
THEN WHAT???
please help me out and show the steps

THANK YOU
Conner