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5 votes
−30=5(x+1) solve for x pls help

User Sawel
by
5.0k points

2 Answers

3 votes

Answer:


\boxed{x = - 7}

Explanation:


\mathrm{ - 30 = 5(x + 1)}

Distribute 5 through the parentheses


\mathrm{ - 30 = 5x + 5}

Move constant to L.H.S and change its sign


\mathrm{ - 30 - 5 = 5x}

Calculate


\mathrm{ - 35 = 5x}

Swipe the sides of the equation


\mathrm{5x = - 35}

Divide both sides of the equation by 5


\mathrm{ (5x)/(5) = ( - 35)/(5) }

Calculate


\mathrm{x = - 7}

Hope I helped!

Best regards!!

User Fran Sevillano
by
5.1k points
0 votes

Answer:


\boxed{\sf x = -7}

Explanation:


\sf Solve \: for \: x: \\ \sf \implies - 30 = 5(x + 1) \\ \\ \sf - 30 =5(x+ 1) \: is \: equivalent \: to \: 5 (x + 1) = - 30: \\ \sf \implies 5(x + 1) = - 30 \\ \\ \sf Divide \: both \: sides \: of \: 5(x+ 1) = - 30 \: by \: 5: \\ \sf \implies (5(x + 1))/(5) = - (30)/(5) \\ \\ \sf (5)/(5) = 1 : \\ \sf \implies x + 1 = - (30)/(5) \\ \\ \sf - (30)/(5) = - \frac{6 * \cancel{5}}{ \cancel{5}} = - 6 : \\ \sf \implies x + 1 = - 6 \\ \\ \sf Subtract \: 1 \: from \: both \: sides: \\ \sf \implies x + (1 - 1) = - 6 - 1 \\ \\ \sf 1 - 1 = 0 : \\ \sf \implies x = - 6 - 1 \\ \\ \sf - 6 - 1 = - 7 : \\ \sf \implies x = - 7

User Karunski
by
4.9k points