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3 votes
Make x the subject of each formula.

i 3x + 2r = 2x + r
ii 5x + 3c = 9c − 4x
iii x2 = r

User Spongyboss
by
8.0k points

1 Answer

3 votes

Answer:

i. x = -r

ii. x = 2/3

iii. x = \sqrt{r \\ }

Explanation:

i. 3x + 2r = 2x + r

x + 2r = r

x = -r

ii. 5x + 3c = 9c - 4x

9x = 6c (÷9)

x = 6/9 (simplify)

= 2/3

iii. x² = r

x = \sqrt{r \\ }

User Rawler
by
8.8k points