Question

k)7-2x=10-3x L) 4x-7=8x-2. m) 8x-1=2x+11. n) 9-2x=10-4x. o) 7x+2=10+5x. p) 3x-4=2x+8. q)2x-5=x+1 r) 8x-5=17-3x. s)4x-10=2x+2. t) 2x+5-5x= -1 pfv vou dar estrelinha​

Answer 1

$\rightrightarrows\LARGE {\boxed{\boxed{\sf Ol\acute{a} {,}\ Boa\ noite!}}}$

Conteúdo ✍ :

➡️ Equação do 1º Grau. ✔️⚽

☔ Para que possamos calcular sua questão, primeiro temos que isolar a incógnita passando os termos com o X para o lado esquerdo da igualdade, invertendo os sinais dos termos nessa passagem.

✈ Por fim, basta dividir o termo do lado direito da igualdade pelo termo do lado esquerdo para descobrirmos o valor de X:

$\large{\boxed{\begin{array}{l} \sf k)\ 7-2x=10-3x\\\\ \sf -2x +3x = 10 -7\\\\ \sf x= 3\end{array}}}$ ✅ ✍

$\large{\boxed{\begin{array}{l} \sf L)\ 4x-7=8x-2\\\\\ \sf 4x -8x= -2 +7\\\\ \sf -4x = 5\times (-1)\\\\ \sf 4x = -5\\\\ \sf x= \dfrac{-5}{4} \end{array}}}$  ✅ ✍

$\large{\boxed{\begin{array}{l} \sf M)\ 8x-1=2x+11\\\\ \sf 8x - 2x=11+1\\\\ \sf 6x= 12\\\\ \sf x=\dfrac{12}{6}\\\\ \sf x= 2 \end{array}}}$  ✅ ✍

$\large{\boxed{\begin{array}{l} \sf N)\ 9-2x=10-4x\\\\ \sf -2x +4x= 10 -9\\\\ \sf 2x = 1\\\\ \sf x = \dfrac{1}{2} \end{array}}}$  ✅ ✍

$\large{\boxed{\begin{array}{l} \sf O)\ 7x+2=10+5x\\\\ \sf 7x -5x=10 -2\\\\ \sf 2x = 8\\\\ \sf x= \dfrac{8}{2} \\\\ \sf x= 4 \end{array}}}$  ✅✍

$\large{\boxed{\begin{array}{l} \sf P)\ 3x-4=2x+8\\\\ \sf 3x -2x = 8 +4\\\\ \sf x = 12 \end{array}}}$  ✅ ✍

$\large{\boxed{\begin{array}{l} \sf Q)\ 2x-5=x+1\\\\ \sf 2x -x = 1 +5\\\\ \sf x= 6 \end{array}}}$   ✅ ✍

$\large{\boxed{\begin{array}{l} \sf R)\ 8x-5=17-3x\\\\ \sf 8x+3x = 17 + 5 \\\\ \sf 11x = 22 \\\\ \sf x= \dfrac{22}{11} \\\\ \sf x= 2 \end{array}}}$  ✅ ✍

$\large{\boxed{\begin{array}{l} \sf S)\ 4x-10=2x+2\\\\ \sf 4x -2x =2+10\\\\ \sf 2x= 12\\\\ \sf x= \dfrac{12}{2}\\\\ \sf x= 6 \end{array}}}$  ✅ ✍

$\large{\boxed{\begin{array}{l} \sf T)\ 2x+5-5x= -1\\\\ \sf 2x-5x= -1 -5\\\\ \sf -3x= -6 \times (-1)\\\\ \sf 3x= 6\\\\ \sf x= \dfrac{6}{3}\\\\ \sf x= 2 \end{array}}}$  ✅ ✍

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