From the sum of - 7x 5 - 14x4 – 21x3 and 5x7 – 7x4 ,substract – 7x5 +5x7 .
Answers
Answered by
0
Answer:
7×5= 35
14×4=56
= 35+ 56
=91
21×3=63
5×7=35
63+35
=98
98-91
=7
ans = 7
Answered by
0
Answer: The answer is – 147
Step-by-step explanation: –7×5–14×4–21×3+5×7–7×4
= –35–56–63+35–28 = –147.
–147–7×5+5×7
= –147–35+35
=–147
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