Question

12x-15=6-3x what is x

Answer 1

Answer:

Page No 4:

Question 1:

Evaluate:

(i) 15 + (−8)

(ii) (−16) + 9

(iii) (−7) + (−23)

(iv) (−32) + 47

(v) 53 + (−26)

(vi) (−48) + (−36)

ANSWER:

(i) 15 + (−8) = 7

(ii) (−16) + 9 = −7

(iii) (−7) + (−23) = −30

(iv) (−32) + 47 = 15

(v) 53 + (−26) = 27

(vi) (−48) + (−36) = −84

Page No 4:

Question 2:

Find the sum of:

(i) 153 and − 302

(ii) 1005 and − 277

(iii) − 2035 and 297

(iv) − 489 and − 324

(v) − 1000 and 438

(vi) − 238 and 500

ANSWER:

(i) 153 + (−302) = −149

(ii) 1005 + (−277) = 728

(iii) (−2035) + 297 = −1738

(iv) (−489) + (−324) = −813

(v) (−1000) + 438 = −562

(vi) (−238) + 500 = 262

Answer 2

Step-by-step explanation:

$12x - 15 = 6 - 3x \\ 12x + 3x = 6 + 15 \\ 15x = 21 \\ x = 21 \div 15 \\ 7 \div 5$

x=7/5