Question

$34 - (4 \times x) = 6 \\ 100 - (7 \times x) = 51 \\ 8 \times x + 44 = 100 \\ 92 - (7 \times x) = 57 \\ 90 - (9 \times 5) = 27 \\ 29 + (7 \times x) = 71$
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Answer 1

Explicație pas cu pas:

a)34-(4×x)=6 / -34

-4x=-28/:(-4)

x=7

b)100-(7×x)=51/-100

-7x=-49/:(-7)

x=7

c)8×x+44=100 /-44

8x=56/:8

x=7

d)92-(7×x)=57/-92

-7x=-35/:(-7)

x=5

e)90-(9×x)=27/-90

-9x=-63/:(-9)

x=7

f)29+(7×x)=71/-28

7x=42/:7

x=6

Coroană**