Respostas
respondido por:
4
4x + 4(-5x + -4) = -144
Reorder the terms:
4x + 4(-4 + -5x) = -144
4x + (-4 * 4 + -5x * 4) = -144
4x + (-16 + -20x) = -144
Reorder the terms:
-16 + 4x + -20x = -144
Combine like terms: 4x + -20x = -16x
-16 + -16x = -144
Solving
-16 + -16x = -144
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '16' to each side of the equation.
-16 + 16 + -16x = -144 + 16
C: -16 + 16 = 0
0 + -16x = -144 + 16
-16x = -144 + 16 : -144 + 16 = -128
-16x = -128 '-16'.
x = 8 x = 8
sajolari:
obrigado
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