Question

la ayuda con tarea de ecuaciones
12 x = - 15 + 294
(- 12 - ( - 9 ) x = - 54
( - 23 - 18 )m = - 656
t + 76 = 45
k - ( - 12 ) = 25
- 11 + d = 19
143 + g = - 253
- 272 = - 351 + m
- 36 = r + ( - 115)
x- ( - 76 ) = 37
- 37 = 45 + x
- 81 + d = 18

Answer 1

$12x = - 15 + 294 \\ 12x = 279 \\ x = 279 \div 12 \\ x = \frac{93}{4}$

$( - 12 - ( - 9)x = - 54 \\ ( - 12 + 9)x = - 54 \\ - 3x = - 54 \\ x = - 54 \div - 3 \\ x = 18$

$( - 23 - 18)m = - 656 \\ - 41m = - 656 \\ m = - 656 \div ( - 41) \\ m = 16$

$k - ( - 12) = 25 \\ k + 12 = 25 \\ k = 25 - 12 \\ k = 13$

$t + 76 = 45 \\ t = 45 - 76 \\ t = - 31$

$- 11 + d = 19 \\ d = 19 + 11 \\ d = 30$

$143 + g = - 253 \\ g = - 253 - 143 \\ g = - 396$

$- 272 = - 351 + m \\ - m = - 351 + 272 \\ - m = - 79 \\ m = - 79 \div (- 1) \\ m = 79$

$- 36 = r + ( - 15) \\ - 36 = r - 15 \\ - r = - 15 + 36 \\ - r = 21 \\ r = 21 \div ( - 1) \\ r = - 21$

$x - ( - 76) = 37 \\ x + 76 = 37 \\ x = 37 - 76 \\ x = - 39$

$- 37 = 46 + x \\ - x = 46 + 37 \\ - x = 83 \\ - x = 83 \div ( - 1) \\ - x = - 83$


$- 81 + d = 18 \\ d = 18 + 81 \\ d = 99$

espero haberte ayudado.