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Nana76 [90]
3 years ago
12

Solve: -3= 12x - 5(2x - 7) X = -19 19 71 = =-11 10 11 I= 19

Mathematics
1 answer:
alexgriva [62]3 years ago
6 0

Answer:

\boxed{ \bold{ \huge{ \boxed{ \sf{x =  - 19}}}}}

Step-by-step explanation:

\sf{ - 3 = 12x - 5(2x  - 7)}

Distribute 5 through the parentheses

⇒\sf{ - 3 = 12x - 10x + 35}

Collect like terms

⇒\sf{ - 3 = 2x + 35}

Swap the sides of the equation

⇒\sf{2x + 35 =  - 3}

Move 45 to right hand side and change it's sign

⇒\sf{2x =  - 3 - 35}

Calculate

⇒\sf{2x =  - 38}

Divide both sides of the equation by 2

⇒\sf{ \frac{2x}{2}  =  \frac{ - 38}{2} }

Calculate

⇒\sf{x =  - 19}

Hope I helped!

Best regards!!

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