Question

Hallar valor de x
3x+16=49

X:2-3=7

Answer 1

Respuesta:

a)3x+16=49

3×=49-16

3×=33

×=33÷3

×=11

b) x÷2-3=7

1/2x-3=7

2.(1/2x-3)=2.7

x-6=14

x=14+6

x=20

Answer 2

Explicación paso a paso:

$3x + 16 = 49 \\ 3x = 49 - 16 \\ 3x = 33 \\ x = 33 \div 3 \\ x = 11$

$x \div 2 - 3 = 7 \\ x \div 2 = 7 + 3 \\ x = 10 \times 2 \\ x = 20$