Question

x+x*4 =52 помогите......ю. авававава

Answer 1

$x + x \times 4 = 52 \\ x + x = 2x \\ 2x \times 4 = 52 \\ 2x = 52 \div 4 = 13 \\ x = 13 \div 2 \\ x = 6.5$