Answer:
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Step-by-step explanation:
Răspuns:
260; 1188; -300; - 260
Explicație pas cu pas:
A.)
26 * (- 12) +26 (-18) + 26,40;
26 (- 12 - 18 + 40)
26 (10)
= 260
C.)
(-18) (-22) + (-18) (-36) + (-18) - 8;
-18 (- 22 - 36 - 8)
-18 (-66)
= 1188
b.)
15 * (- 34) - 15 * 21 + 15 * 35;
15 (-34 - 21 + 35)
15 (- 20)
= - 300
d.)
-26 * (-12) - 26 * (- 18) - 26 * 40.
-26 (- 12 - 18 + 40)
-26 (10)
-260
Step-by-step explanation:
3(-30x - 15y = -30) ...........(i)
15(6x + 3y = 6) ..............(ii)
Now,
-90x -45y = -90
90x +45y = 90
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Every term is cancelled. so this system has no any solution so it means solution does not exist (DNE)