Question

ayuda por favor es para hoy no tiendo nada​

Answer 1

TEMA: ECUACIONES DE PRIMER GRADO

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A) 4X = 20

4X = 20

X = 20 ÷ 4

X = 5

B) $\mathbf{\frac{x}{5} }$ = 8

$\mathbf{\frac{x}{5} }$ = 8

X = 8 × 5

X = 40

C) 2X - 4 = 10

2X - 4 = 10

2X = 10 + 4

2X = 14

X = 7

D) W - 8 = 2W + 16

W - 8 = 2W + 16

-16 - 8 = 2W - W

-24 = W

E) -5Y = 30

-5Y = 30

Y = 30 ÷ -5

Y = -6

F) $\mathbf{\frac{Z}{-3} }$ = 5

$\mathbf{\frac{Z}{-3} }$ = 5

Z = 5 × -3

Z = -15

G) -4X = -20

-4X = -20

X = -20 ÷ -4

X = 5

H) $\mathbf{\frac{Y}{-4} }$ = -8

$\mathbf{\frac{Y}{-4} }$ = -8

Y = -8 × -4

Y = -28

I) 5W + 2W = -30

7W = -30

W = $\mathbf{\frac{-30}{7} }$

J) 4X - 2X = 10 + 8

4X - 2X = 10 + 8

2X = 18

X = 9

K) -X - 3X = -6 + 10

-X - 3X = -6 + 10

-4X = 4

X = 4 ÷ -4

X = -1

L) 8W - 4 = 6W - 10

8W - 4 = 6W - 10

8W - 6W = -10 + 4

2W = -6

W = -3

M) 10X + 1 = -8X + 5

10X + 1 = -8X + 5

10X + 8X = 5 - 1

2X = 4

X = 2

N) $\mathbf{\frac{Y}{4} }$ + 1 = -5

$\mathbf{\frac{Y}{4} }$ + 1 = -5

$\mathbf{\frac{Y}{4} }$ = - 5 - 1

$\mathbf{\frac{Y}{4} }$ = -6

Y = -6 × 4

Y = -24

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