Question

ayudaaa porfa a)2(5x+2)-2x=3(2x+3)+7
b) 6x-9/9=3
c) x/7-6=10
d) x/2+2x/5=9
e) 4x-2/2=x+3
f) 3x+1/2=11
ayúdenme por favor

Answer 1

A)
2(5x+2)=3(2x+3)+7
10x+4=6x+9+7
10x+4=6x+16
10x-6x=16-4
4x=12
X=3
.
B)
$\frac{6x - 9}{9} = 3 \\ 6x - 9 = 27 \\ 6x = 36\\ x = 1$
.
C)
x/7-6=10
X/7=10+6
X/7=16
X=16×7
X=112
.
D)
$\frac{x}{2} + \frac{2x}{5} = 9 \\ \frac{5x + 4x}{10} = 9 \\ 9x = 9 \times 10 \\ 9x = 90 \\ x = 10$
.
E)
$\frac{4x - 2}{2} = x + 3 \\ 4x - 2 = 2(x + 3) \\ 4x - 2 = 2x + 6 \\ 4x - 2x = 6 + 2 \\ 2x = 8 \\ x = 4$
.
F)
$\frac{3x + 1}{2} = 11 \\ 3x + 1 = 11 \times 2\\ 3x + 1 = 22 \\ 3x = 22 - 1 \\ 3x = 21 \\ x = 7$
ya está espero que sirva, suerte!!!! C: