Respuesta:
a. [tex]\frac{25}{2}[/tex]
b. 6
Explicación paso a paso:
a.
2(x − 5) = 7 + 2 · 4
2x -10 = 7 +8
2x = 7 +8 +10
2x = 25
x = [tex]\frac{25}{2}[/tex]
b.
5(1 + x) −7 = 28
5 +5x -7 = 28
5x = 28 -5 +7
5x = 30
x = [tex]\frac{30}{5}[/tex]
x = 6
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Respuesta:
a. [tex]\frac{25}{2}[/tex]
b. 6
Explicación paso a paso:
a.
2(x − 5) = 7 + 2 · 4
2x -10 = 7 +8
2x = 7 +8 +10
2x = 25
x = [tex]\frac{25}{2}[/tex]
b.
5(1 + x) −7 = 28
5 +5x -7 = 28
5x = 28 -5 +7
5x = 30
x = [tex]\frac{30}{5}[/tex]
x = 6