Help me with this pls​

asked Jan 11, 2022 8.4k views

12 votes

Help me with this pls

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14 votes

Answer:

9, -8, 15

Explanation:

Equation 1

$5(x+7)-3(x-4)=7x+2 \\ \\ 5x+35-3x+12=7x+2 \\ \\ 2x+47=7x+2 \\ \\ 47=5x+2 \\ \\ 45=5x \\ \\ x=9$

Equation 2

$4(3x+5)-3=9x-7 \\ \\ 12x+20-3=9x-7 \\ \\ 12x+17=9x-7 \\ \\ 3x+17=-7 \\ \\ 3x=-24 \\ \\ x=-8$

Equation 3

$(1)/(3)(5x-9)=2\left((1)/(3)x+6 \right) \\ \\ 5x-9=2(x+18) \\ \\ 5x-9=2x+36 \\ \\ 3x-9=36 \\ \\ 3x=45 \\ \\ x=15$

Iago answered Jan 17, 2022

by Iago

5.4k points

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