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paheart and brainliest
Answer:
2.
[tex]3 + x = 8 \\ 3 - 3 + x = 8 - 3 \\ x = 5 \\ to \: check \\ x = 5 \\ 3 + 5 = 8 \\ 8 = 8[/tex]
3.
[tex]x + 5 = - 5 \\ x + 5 - 5 = - 5 - 5 \\ x = - 10 \\ to \: check \\ x = - 10 \\ - 10 + 5 = - 5 \\ - 5 = - 5[/tex]
4.
[tex]5x - 2 = 18 \\ 5x - 2 + 2 = 18 + 2 \\ 5x = 20 \\ ( \frac{1}{5} )(5x) = 20( \frac{1}{5}) \\ x = \frac{20}{5} \\ x = 4 \\ [/tex]
let x =4
[tex]5(4) - 2 = 18 \\ 20 - 2 = 18 \\ 18 = 18[/tex]
5.
[tex]3x = 12 \\ ( \frac{1}{3} )(3x) = 12( \frac{1}{3} ) \\ x = \frac{12}{3} \\ x = 4[/tex]
let x =4
[tex]3(4) = 12 \\ 12 = 12[/tex]
6.
[tex]x \div 5 = 40 \\x \div 5 - 5 = 40 \times 5 \\ x = 200[/tex]
let x =200
[tex]200 \div 5 = 40 \\ 40 = 40[/tex]
correct me if I'm wrong