Calcule o valor de X.
2x-6° 3x/5 +30° = 180°
Soluções para a tarefa
Resposta:
x=-225/2+75/4
Explicação passo-a-passo:
2x'6 3x/5+30=180
2x6 3x/5+30=180
-6 ×3x/5
-6×3x/5
-18x/5
2x-6×3x/5 +30=180
2x -18x/5 +3<=180
5(2x- 18x/5 +30)=5×180
5(2x 18x/5 +30)=5×180
5×2x-5× 18x/5 +5×30=5×180
5×2x-5× 18x/5 +5×30=900
5×2x-5× 18x/5 +5×30=900
10x-5× 18x/5 +5×30=900
5×2x-5× 18x/5 +4×30=900
10x-18x+5×30=900
10x-17x+5×30=900
5×2x-5× 18x/5 +5×30=900
10x-18x+150=900
2x-18x/5 +30=180
10x-18x+150=900
10x-18x
(10-18)x
-8x
10x-18x+150=900
-8x+150=900
-8x+150-150=900-150
-8x=900-150
-8x+150=900
-8x=900-150
-8x÷(-8)=(900-50)÷8
-8x÷(-8)=(900-50)÷8
x=(900-50)÷(-8)
8x÷(-8)=(900-150)÷(-8)
x=900÷(-8)-150÷(-8)
x=900+(-8)-150÷(-8)
x=900+(-8)-150÷(-8)
x=900÷8-150÷(-8)
x=-900/8-150÷(-8)
x=900÷(-8)-150÷(-8)
x=900÷(-8)-150÷(-8)
x=-900/8 +150÷8
x=-800/8 +150/8
x=-900/8 + 150/8 aqui risque os numeros 900 e 8
x=-900/8 + 150/8 aqui risque os numeros 150 e 8
x=-225/2 + 150/8
x=-225/2 + 75/4
-8x=900-150
x=-225/2 + 75/4
Resposta
x=-225/2 + 75/4