Question

9450=1/2(2x+x)84 solve. it

Answer 1

solution: 9450=1/2*3x*84
9450/42*3=x
7=x
Hope it's clear..

Answer 2

Hello........... ^_^

Here is your answer,

$9450 = \frac{1}{2} (2x + x)84 \\ \\( 84 \div 2 = 42) \\ \\ = > 9450 = 1(2x + x)42 \\ \\ = > 9450 = 42(2x + x) \\ \\ = > 9450 = 84x + 42x \\ \\ = > 9450 = 126x \\ \\ = > \frac{9450}{126} = x \\ \\ = > 75 = x$


Check
$\frac{1}{2} (2x + x)84 \\ \\ = \frac{1}{2} (2 \times 75 + 75)84 \\ \\ = \frac{1}{2} \times (105 + 75)84 \\ \\ = \frac{1}{2} \times 225 \times 84 \\ \\ = 225 \times 42 \\ \\ = 9450$



Hope it helps.......... ^_^