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[tex]\huge \bf༆ Answer ༄[/tex]

Let's solve ~

A. 5(x - 4) = 10

  • [tex] \sf5(x - 4) = 10[/tex]

  • [tex] \sf(x - 4) = 10 \div 5[/tex]

  • [tex] \sf \: x - 4 = 2[/tex]

  • [tex] \sf x = 2 + 4[/tex]

  • [tex] \sf x = 6[/tex]

B. 2x(4x + 3x) = 21

  • [tex] \sf2x(4x + 3x) = 21[/tex]

  • [tex] \sf2x(7x) = 21[/tex]

  • [tex] \sf14 {x}^{2} = 21[/tex]

  • [tex] \sf {x}^{2} = 21 \div 14[/tex]

  • [tex] \sf x {}^{2} = \dfrac{3}{2} [/tex]

  • [tex] \sf x = \sqrt{ \dfrac{3}{2} } [/tex]

C. 3(4 - 2x) = 28

  • [tex] \sf3(4 - 2x) = 28[/tex]

  • [tex] \sf12 - 6x = 28[/tex]

  • [tex] \sf - 6x = 28 - 12[/tex]

  • [tex] \sf x = 16 \div - 6[/tex]

  • [tex] \sf x = - \dfrac{8}{3} [/tex]

D. 10x(2 + 13) = 300

  • [tex] \sf 10x(2 + 13) = 300[/tex]

  • [tex] \sf10x(15) = 300[/tex]

  • [tex] \sf10x = 300 \div 15[/tex]

  • [tex] \sf x = 20 \div 10[/tex]

  • [tex] \sf x = 2[/tex]

I hope it helps ~

samhype12anna
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