Kak maaf saya masih blum faham

<p>1. m - 9 = 13</p><p>&nbsp; &nbsp; &nbsp;m = 13 + 9</p><p>&nbsp; &nbsp; &nbsp;m = 22</p><p>&nbsp;</p><p>2. 2x + 3 = 11</p><p>&nbsp; &nbsp; &nbsp;2x = 11 - 3</p><p>&nbsp; &nbsp; &nbsp;2x = 8&nbsp;</p><p>&nbsp; &nbsp; &nbsp;x = 8/2&nbsp;</p><p>&nbsp; &nbsp; &nbsp;x = 4</p><p>&nbsp;</p><p>3. 7x = 8 + 3x</p><p>&nbsp; &nbsp; &nbsp;7x - 3x = 8</p><p>&nbsp; &nbsp; &nbsp;4x = 8</p><p>&nbsp; &nbsp; &nbsp;x = 8/4</p><p>&nbsp; &nbsp; &nbsp;x = 2</p><p>&nbsp;</p><p>4. 3p + 5 = 17 - p</p><p>&nbsp; &nbsp; &nbsp;3p + p = 17 - 5</p><p>&nbsp; &nbsp; &nbsp; 4p = 12</p><p>&nbsp; &nbsp; &nbsp; p = 12/4</p><p>&nbsp; &nbsp; &nbsp; p = 3</p><p>&nbsp;</p><p>5. 2a + 1 = a - 3</p><p>&nbsp; &nbsp; &nbsp;2a - a = -3 - 1</p><p>&nbsp; &nbsp; &nbsp;a = -4</p><p>&nbsp;</p><p>6. 12 + 3a = 5 + 2a</p><p>&nbsp; &nbsp; &nbsp; 3a - 2a = 5 - 12</p><p>&nbsp; &nbsp; &nbsp; a = -7</p><p>&nbsp;</p><p>7. 3(x + 1) = 2(x + 4)</p><p>&nbsp; &nbsp; &nbsp;3x + 3 = 2x + 8</p><p>&nbsp; &nbsp; &nbsp;3x - 2x = 8 - 3</p><p>&nbsp; &nbsp; &nbsp;x = 5</p><p>&nbsp;</p><p>8. 4(3 - 2y) = 15 - 7y</p><p>&nbsp; &nbsp; &nbsp;12 - 8y = 15 - 7y</p><p>&nbsp; &nbsp; &nbsp;-8y + 7y = 15 - 12</p><p>&nbsp; &nbsp; -y = 3</p><p>&nbsp; &nbsp; &nbsp;y = -3</p><p>&nbsp;</p><p>9. 2(5 - 2x) = 3(5 - x)</p><p>&nbsp; &nbsp; &nbsp;10 - 4x = 15 - 3x</p><p>&nbsp; &nbsp; &nbsp; -4x + 3x = 15 - 10</p><p>&nbsp; &nbsp; &nbsp;-x = 5</p><p>&nbsp; &nbsp; &nbsp; x = -5</p><p>&nbsp;</p><p>10. -2x + 5 = -(x + 9)</p><p>&nbsp; &nbsp; &nbsp; &nbsp;-2x + 5 = -x - 9</p><p>&nbsp; &nbsp; &nbsp; &nbsp;-2x + x = -9 - 5</p><p>&nbsp; &nbsp; &nbsp; &nbsp; -x = -14</p><p>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp;x = 14</p><p>&nbsp;</p><p>&nbsp;</p>