Resposta :
Resposta:
1) 2+3=5
2) -10+15=5
3) 30+25-5=50
4) 20-5+2=17
5) 5×5=25
6) 12×12=144
7) 6×6= 36
8) 10×10=100
9) 2×25+3×25=125
10) 2+3-1=4×4/3-4/3
Resposta:
1) x+3=5
x=5- 3
x= 2
2) x+15=5
x = 5 - 15
x = - 10
3) 30+x-5=50
x = 50 - 30 + 5
x= 20 + 5
x = 25
4) 20-5+2=x
-x = -20 + 5 - 2
-x = - 15 - 2
-x = -17
x = 17 ji
5) 5x=25
x = 25/5
x = 5
6) 12x=144
x = 144/12
x= 12
7) 6x=36
x= 36 / 6
x = 6
8) 10x=100
x = 100/ 10
x= 10
9)2x+3x=125
5x = 125
x = 125 / 5
x =25
10)2+3-1=4x-x
-4x + x = -2 - 3 + 1
-3x = - 5 + 1
-3x = -4
x = 4/3
Explicação passo-a-passo:
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