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3x + 11 + 5x = 75

Collect 'like terms on the LHS

8x + 11 = 75

Subtract '11' from both sides

8x = 64

Divide both sides by '8'

8x/8 = 64/8

x = 8

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lenpollock

Lvl 16
2y ago

What else can I help you with?