Question

5. Find x in each of the following:
() 7* 4+ (x * 3) = 7 (4+6)
(i) (
( 9 * 8) + ( 8 * 8) -- ( 9 + 8 ) * x​

Answer 1

7*4+(x*3)=7(4+6)

28+(x*3)=70

(x*3)=70-28

(x*3)=42

x=14

hence proved

Answer 2

Answer:

(1) answer = x = 14

(2) answer =

Step-by-step explanation:

(I) solution =

$7 \times 4 + (x \times 3 = 7(4 + 6)$

$28 + x \times 3 = 28 + 42$

$x = 28 - 28 + 42 \div 3$

$x = 0 + 42 \div 3$

$x = 42 \div 3$

$x = 14$

(ii) solution =

$(9 \times 8) +(8 \times 8) - (9 + 8) \times x = 0$

,

$72 + 64 - 17 \times x = 0$

$136 - 17 \times x = 0$

$119 \times x = 0$

$119 = 0 \div x$

$119 = 0$