Упростите выражение 4(5-3x)+9x-7 7(2t+5)-23t-11 -3(0.7p+1.4)+4.8-7.1p

Question

Упростите выражение 4(5-3x)+9x-7
7(2t+5)-23t-11
-3(0.7p+1.4)+4.8-7.1p

Comments

5(6.1-4.2a)+6.3a-4.7

Answer 1

1. 4(5-3х)+9х-7 = 20-12х+9х-7 = 13-3х
2. 7(2t+5)-23t-11 = 14t+35-23t-11 = 24-9t
3. -3(0.7p+1.4)+4.8-7.1p = -2.1p-4.2+4.8-7.1p = 0.6-9.2p

Comments

5(6.1-4.2a)+6.3a-4.7

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30.5-21а+6.3а-4.7=25.8-14.7а