1 / 7 * 5 + 3x = 2 solution equation

1 / 7 * 5 + 3x = 2 solution equation

3X=2x7/5
X=14/5x1/3
X=14/15

4X plus (x plus 2.5) times 5 equals 30.5. How to solve this equation

Mathematical answer group for you to answer, I hope to help you
4X+(X+2.5)*5=30.5
4X+5X+12.5=30.5
9X=18
X=2
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Checking calculation of equation: 1.4x + 31.2 = 34
Urgent!

1.4x+31.2=34
1.4x=34-31.2
1.4x=2.8
x=2
checking calculation:
Substituting x = 2 into the original equation, we get
Left 1.4x = 1.4 × 2 + 31.2 = 34 = right

Equation 3 - (4x-3) = 7

3-(4x-3)=7
3-4x+3=7
6-4x=7
4x=6-7
4x=-1
x=-1/4