1) 2^2 + 3^1x = 0,254 + 3x = 0,253x = 0,25 - 43x = -3,75x = -1,25
2) 3^1x + 3^2x = 9^2 + x3x + 9x = 81 + x12x = 81 + x11x = 81x = 81 / 11x = 7,36
3) 2,25x = 5,125 - 4^1x2,25x = 5,125 - 4x2,25x + 4x = 5,1256,25x = 5,125x = 5,125 / 6,25x = 0,82
4) 4^1x - 2^2x = 8^2 + x4x - 4x = 64 + x0 = 64 + xx = -64
1) 2^2 + 3^1x = 0,25
4 + 3x = 0,25
3x = 0,25 - 4
3x = -3,75
x = -1,25
2) 3^1x + 3^2x = 9^2 + x
3x + 9x = 81 + x
12x = 81 + x
11x = 81
x = 81 / 11
x = 7,36
3) 2,25x = 5,125 - 4^1x
2,25x = 5,125 - 4x
2,25x + 4x = 5,125
6,25x = 5,125
x = 5,125 / 6,25
x = 0,82
4) 4^1x - 2^2x = 8^2 + x
4x - 4x = 64 + x
0 = 64 + x
x = -64